MESKILL, Circuit Judge:
This appeal involves the interplay of the doctrines of res judicata and collateral estop-pel within the confines of admiralty jurisdiction. Empresa Naviera Santa S.A. (Empre-sa) appeals the decision of the United States District Court for the Southern District of New York, Broderick, J., entering summary judgment against Empresa in personam following a judgment in rem against a vessel chartered by Empresa. As we find that res judicata does not bar the claims asserted, and that Empresa is collaterally estopped from contesting the district court’s prior determinations, we affirm.
[363]*363BACKGROUND
This case arose on January 16, 1988 when the M/V LUNAMAR II (the Vessel), a motor tanker flying the Panamanian flag, dragged an anchor on a voyage up the Hudson River, thereby damaging an electrical cable pipeline owned by Central Hudson Gas & Electric Corporation (Central Hudson). Central Hudson filed suit against the Vessel in rem and Seiriki One (Panama) S.A. (Seiriki), the Vessel’s registered owner, three days later (the in rem action). On January 21,1988 the Vessel’s underwriters delivered a $3 million letter of undertaking to Central Hudson to avoid the arrest of the Vessel. The letter, moreover, constituted only an estimate of the damage to the cable pipeline, given that the portion of the river where the accident occurred was frozen and a more accurate estimate could not be obtained immediately.
Although the Vessel’s crew had stated that they were employed by Empresa, a foreign corporation operating the Vessel as bareboat charterparty, the letter of undertaking was executed on behalf of Seiriki as registered owner and did not expressly include any charterparties. Central Hudson thereafter sought to determine the party or parties in control of the Vessel by filing an interrogatory during discovery requesting the names of all of its charterparties. The defendants in the in rem action did not respond to this interrogatory, even after having been ordered to do so by a magistrate judge on May 2, 1989. On July 3, 1990, however, shortly before trial of the in rem action, Seiriki and Empresa filed restricted appearances as the Vessel’s registered owner and owner “pro hoc vice, ” respectively, pursuant to Rule E(8) of the Supplemental Rules for Certain Admiralty and Maritime Claims of the Federal Rules of Civil Procedure (Supplemental Rules). In fifing the restricted appearance Empresa confirmed its relationship to the Vessel for the first time.
A bench trial of the in rem action then commenced on July 31, 1990. Seiriki and Empresa participated in the defense of the Vessel in their representative capacities. On October 3, 1990, following the conclusion of the trial but prior to the entry of the district court’s decision, Central Hudson filed a quasi in rem action in Louisiana to attach the SANTA ROSA de LIMA (SANTA ROSA), another ship operated by Empresa. Additionally on that date Central Hudson filed an in personam suit against Empresa in the Southern District of New York. Both actions alleged that Empresa was personally liable for the damage to the cable pipeline. The two actions were consolidated in the Southern District before Judge Broderick and were placed in abeyance pending his decision in the in rem action. The district court issued its findings in the in rem action on April 7, 1992, dismissing the in personam claim against Seiriki for lack of service and finding the Vessel liable on the in rem claim. On September 9, 1992 the court entered judgment in the amount of $4,477,584.15, constituting approximately $3.37 million in damages and $1.1 million in prejudgment interest, together with costs. We affirmed that decision. See Central Hudson Gas & Elec. Corp. v. M/V LUNAMAR II, 797 F.Supp. 1244 (S.D.N.Y.1992) (LUNAMAR II), aff'd mem., 993 F.2d 1534 (2d Cir.1993). The judgment was only partially satisfied through the $3 million letter of undertaking, and an amount of $1,486,134.44 remained unsatisfied.
Judge Broderick then activated the consolidated in personam and quasi in rem eases. Empresa moved to dismiss both eases and to vacate the attachment of the SANTA ROSA, arguing that under the doctrine of res judi-cata the in rem judgment against the Vessel barred the subsequent lawsuits. Central Hudson cross-moved for summary judgment, arguing that Empresa was collaterally es-topped from refitigating the issues of liability and damages. Judge Broderick denied Empresa’s motions and entered summary judgment in favor of Central Hudson, concluding that the consolidated action was, in essence, simply composed of lawsuits filed to collect on the unpaid portion of the in rem judgment. Judge Broderick also rejected Empresa’s argument that Central Hudson could not pursue both in rem and in person-am claims for the same injury. The district court then awarded prejudgment interest of $364,761.39 on the $1,486,134.44 remaining unpaid from the in rem judgment, and en[364]*364tered judgment against Empresa for the total of $1,850,895.83. Empresa now appeals.
DISCUSSION
The well established standard for reviewing a grant of summary judgment requires us to draw all inferences in favor of the non-moving party. See Sure-Snap Corp. v. State Street Bank and Trust Co., 948 F.2d 869, 872 (2d Cir.1991). Reviewing de novo the question whether any genuine issues of material fact exist, we affirm only when it is clear no reasonable trier of fact could find in favor of appellant. See H.L. Hayden Co. v. Siemens Medical Sys., 879 F.2d 1005, 1011 (2d Cir.1989).
I. Jurisdiction
Empresa initially contends that in the prior action the district court possessed jurisdiction only to the extent of the value of the res or the amount of any bond substituted therefor, and thus lacked jurisdiction to enter a judgment in excess of the value of the $3 million letter of undertaking. Indeed, Empresa points to the rule that “an in rem action is an action against the arrested res itself and any judgment is thus limited to the value thereof or the value of the bond or stipulation substituted for the res to obtain its release.” 7A James Wm. Moore, Moore’s Federal Practice ¶ E.16[2] at E-779 (2d ed. 1995) (footnote omitted; emphasis added).
While this rule generally governs in rem actions, it is axiomatic that a district court sitting in admiralty exercises “powers akin to those of a court of equity.” The MINNETONKA, 146 F. 509, 515 (2d Cir.), cert. denied, 203 U.S. 589, 27 S.Ct. 777, 51 L.Ed. 330 (1906). By virtue of those powers, a court possesses jurisdiction to enter judgment in excess of the value of an arrested res. Indeed, as we explained in MINNE-TONKA, “[a] court of admiralty ... should not be hampered in its efforts to reach ... substantial justice.” Id.; see also Mosher v. Tate, 182 F.2d 475, 479 (9th Cir.1950) (“[W]e think that under all of the circumstances of this case and in order to achieve substantial justice the trial court has power to enter a personal decree against appellees without any additional service of process or supplemental libel.”); The FAIRISLE, 76 F.Supp. 27, 32 (D.Md.1947) (holding “no principle of admiralty law ... prohibits this Court from rendering a decree against claimant for the total amount of the award,” even where award exceeds amount of bond posted as security), aff'd sub nom. Waterman S.S. Corp. v. Dean, 171 F.2d 408 (4th Cir.1948); see generally 7A Moore’s Federal Practice ¶ E.16[2] at E-780 (“[I]n some instances the owner or claimant who procures the release of the res or who enters a restricted appearance to defend the res may be held personally accountable for damages in excess of the value of the arrested res or the substitute bond or stipulation provided to obtain its release.”).1 We find, under the circumstances of this case, that the district court properly exercised its authority as an admiralty court to enter a judgment in excess of the value of the letter of undertaking.
[365]*365In essence, Empresa’s argument rests on a confusion between damages and liability. The district court’s decision in LUNAMAR II determined that the damage to Central Hudson’s cable pipeline was caused by the Vessel, and calculated the value of this damage at $4,477,584.15. This factual finding became final when we affirmed that judgment. See In re PCH Assocs., 949 F.2d 585, 593 (2d Cir.1991) (where district court determined issue in earlier case and where appellate court did not disapprove, it was law of the case). Thus, the amount of Central Hudson’s damages is not at issue here.
The question, rather, is whether Central Hudson can collect on the unrecovered portion of the in rem judgment from Empresa in this in personam action. Central Hudson cannot, of course, simply execute on the in rem judgment against a defendant not yet found to be liable. See Cooper v. Reynolds, 77 U.S. (10 Wall.) 308, 318, 19 L.Ed. 931 (1870) (“[T]he judgment of the court, though in form a personal judgment against the defendant, has no effect beyond the property attached in that suit. No general execution can be issued for any balance unpaid after the attached property is exhausted.”). Therefore, Empresa must be found liable in personam before it can be held responsible for the uncollected portion of the in rem judgment. This requirement, however, is legally distinct from the issue of whether the district court possessed the authority to enter judgment in excess of the value of the res. We thus turn to the proper question raised by this appeal: whether Empresa can be held hable in personam for the uncollected portion of the in rem judgment.
II. Can Central Hudson Bring This In Personam Action?
A. Whether an In Rem Judgment Bars Subsequent In Personam Suits
Empresa next asserts that since the prior judgment was entered against the Vessel in rem, that judgment bars any subsequent in personam claim. Empresa bases this argument on the distinction between in rem and in personam jurisdiction in admiralty law. Central Hudson argued below, and the district court agreed, that the 1966 Amendments to the Admiralty Rules specifically permit separate in rem and in person-am actions. We concur.
Empresa relies on three prior decisions in this Circuit to support its argument that a litigant cannot pursue separate in rem and in personam claims regarding the same injury in sequential suits: Burns Bros. v. Central Railroad, 202 F.2d 910 (2d Cir.1953); Sullivan v. Nitrate Producers’ S.S. Co., 262 F. 371 (2d Cir.1919); and Bailey v. Sundberg, 49 F. 583 (2d Cir.1892), cert. denied, 154 U.S. 494, 14 S.Ct. 1142, 38 L.Ed. 1078 (1894). Bums Bros, involved a plaintiff who lost a previous decision in personam against the owner of a carfloat (although the plaintiff won against the co-defendant carfloat operator) following a collision between the carfloat and the plaintiffs barge, and who subsequently filed an action in rem against the carfloat. Judge Learned Hand, after reviewing the Sullivan and Bailey decisions, concluded that “a decree in rem is a bar to a suit in personam, and we cannot see why the rule should not work both ways.” Burns Bros., 202 F.2d at 913. The Court then found:
When the plaintiff has two alternative remedies available to him upon the same “cause of action,” he may not reserve one and sue upon the other, and a judgment for the defendant upon one will be a bar to a later suit upon the other; but obviously this rule ought not to apply when at the time of the first action only one of the two remedies was available to the plaintiff.... If we regard the “cause of action” at bar as the same as that in the first suit, as we must, the present libel in rem was an alternative remedy to the libel in person-am, so that this appeal comes down to whether a libel in rem was “available” to Burns Bros, in the first suit, since, if it was, it could have been joined with the libel in personam under the 14th Admiralty Rule [now Rule C(l)(b) of the Supplemental Rules].
Id.
Judge Hand’s discussion raises several points pertinent to the instant appeal. We note initially that Burns Bros, did not con[366]*366cern a suit filed to collect damages established by a prior judgment, but involved a suit to establish liability and damages anew. Bums Bros, thus does not govern a suit essentially seeking collection of an unpaid portion of a judgment against a joint tortfea-sor. See generally Grant Gilmore & Charles L. Black, Jr., The Law of Admiralty § 9-17, at 614 n. 73 (2d ed. 1975) (“A plaintiff who has recovered a judgment in an in rem action which remains in part unsatisfied may proceed against the owner in personam to recover the deficiency.”).
Second, as the district court in the instant case noted, the Supplemental Rules do not require a party to bring in rem and in personam claims in the same action. Rule C(l)(b) of the Supplemental Rules specifically provides that “a party who may proceed in rem may also, or in the alternative, proceed in personam against any person who may be liable.” (emphasis added). Thus Central Hudson is barred from bringing its in personam claim against Empresa, if at all, by the doctrine of res judicata and not by the Admiralty Rules, a conclusion supported by Judge Hand’s holding in Bums Bros. See 202 F.2d at 912-13. Indeed, while Central Hudson and the district court both read Rule C(l)(b) to “abrogate” the prior doctrine set forth in Bums Bros., we decline to do so. Instead, Bums Bros, and its predecessors should be read simply to apply res judicata principles to successive in rem and in personam actions, a holding with which Rule C(l)(b) is not inconsistent.2
Finally, the 1966 Amendments to the Admiralty Rules did not affect the previously existing right of plaintiffs to file separate or successive in rem and in personam actions. As reflected in the Advisory Committee Notes to the 1966 Amendments, the Amendments were not intended to change prior law:
The main concern of Admiralty Rules 13-18 [now Supplemental Rule E] was with the question whether certain actions might be brought in rem or also, or in the alternative, in personam. Essentially, therefore, these rules deal with questions of substantive law, for in general an action in rem may be brought to enforce any maritime lien, and no action in personam may be brought when the substantive law imposes no personal liability.
Supplemental Rule C(l) advisory committee’s note (emphasis added). The fact that the 1966 Amendments did not affect in rem and in personam filings is further reflected in the case law. Compare United States v. Matson Nav. Co., 201 F.2d 610, 618 (9th Cir.1953) (pre-Amendment case holding that where causes of action arose from single collision, claimant could proceed in rem against ship and in personam against owners and masters), with Belcher Co. v. M/V MARATHA MARINER, 724 F.2d 1161, 1163 (5th Cir.1984) (post-Amendment case holding that “[ujnder the admiralty law of the United States, in personam and in rem actions may arise from the same claim, and may be brought separately or in the same suit”). Accordingly, we find that this in personam action is barred by the in rem judgment, if at all, only by the doctrine of res judicata, to which we now turn.
B. Res Judicata
The doctrine of res judicata, or claim preclusion, holds that following entry of a valid final judgment, “the parties to the suit and their privies are thereafter bound ‘not only as to every matter which was offered and received to sustain or defeat the claim or demand, but as to any other admissible matter which might have been offered for that purpose.’” C.I.R. v. Sunnen, 333 U.S. 591, 597, 68 S.Ct. 715, 719, 92 L.Ed. 898 (1948) (quoting Cromwell v. County of Sac, 94 U.S. 351, 352, 24 L.Ed. 195 (1876)); In re Teltronics Servs., 762 F.2d 185, 190 (2d Cir.[367]*3671985).3 Empresa contends that res judicata bars this action because Central Hudson could have sued Empresa in its in personam capacity during the in rem action, but failed to do so. In particular, Empresa asserts that Central Hudson knew of its status as the Vessel’s bareboat charterparty as early as August 1988, from depositions taken of the Vessel’s crew, and that it was amenable to the district court’s jurisdiction because it maintained a shipping agent in New York. It is undisputed that Central Hudson knew of Empresa’s relationship to the Vessel one month prior to trial, and did not move to amend its complaint to add an in personam claim. Central Hudson contends, however, that it did not have sufficient knowledge to name Empresa as a defendant because Empresa concealed its interests in the Vessel as part owner and bareboat charterparty, despite a discovery order by a magistrate judge. Central Hudson argues that Empre-sa should not now be rewarded by the barring of this action for this obstruction of discovery.
Such allegations may be considered by this Court in assessing the availability of a claim for res judicata purposes. See La Societe Anonyme des Parfums Le Galion v. Jean Patou, Inc., 495 F.2d 1265, 1276 (2d Cir.1974). While the district court noted that Empresa’s specific interest in the Vessel was “lurking in the background” of the in rem action, however, the court did not address directly the issue of Empresa’s availability. We need not do so either, as we find Central Hudson’s claim would not be barred by res judicata even if Empresa had been available.
Notably, Central Hudson did not seek duplicative or additional damages in this action, and the essence of its claim was that Empresa, as the operator of the Vessel, was also liable as a joint tortfeasor for the damage to its cable pipeline. When a litigant files consecutive lawsuits against separate parties for the same injury, the entry of a judgment in the prior action does not bar the claims against other potentially liable parties. See United States v. Lacey, 982 F.2d 410, 412 (10th Cir.1992); White v. Kelsey, 935 F.2d 968, 970 (8th Cir.1991); Gill & Duffus Servs. v. A.M. Nural Islam, 675 F.2d 404, 406-07 (D.C.Cir.1982) (per curiam); McClelland v. Facteau, 610 F.2d 693, 695 n. 1 (10th Cir.1979); see generally Restatement (Second) of Judgments § 49 cmt. a (1982) (For preclusion purposes, “the claim against others who are liable for the same harm is regarded as separate.”); 18 Charles A. Wright, Arthur R. Miller & Edward H. Cooper, Federal Practice and Procedure § 4407, at 52-53 (“A single plaintiff ... has as many causes of action as there are defendants to pursue.”). Since Central Hudson’s in personam claim against Empresa is distinct from its claim against the Vessel in rem, and since the in personam claim has not been adjudicated, res judicata does not bar this action. See Montana v. United States, 440 U.S. 147, 154, 99 S.Ct. 970, 974, 59 L.Ed.2d 210 (1979) (“A cause of action which a non-party has vicariously asserted differs by definition from that which he subsequently seeks to litigate in his own right.”); Gargiul v. Tompkins, 790 F.2d 265, 272-73 (2d Cir.1986).
This assumes, of course, that Empresa was not in privity with the Vessel, despite its assistance in the defense of the in rem action. Privity traditionally has denoted a “successive relationship to the same rights of property.” Bailey, 49 F. at 585. In its modern form, the principle of privity bars relitigation of the same cause of action [368]*368against a new defendant known by a plaintiff at the time of the first suit where the new defendant has a sufficiently close relationship to the original defendant to justify preclusion. See Amalgamated Sugar Co. v. NL Indus., 825 F.2d 634, 640 (2d Cir.), cert. denied, 484 U.S. 992, 108 S.Ct. 511, 98 L.Ed.2d 511 (1987). This determination often requires a court to inquire whether a party “controlled] or substantially partiei-pate[d] in the control of the presentation on behalf of a party” to the prior action. National Fuel Gas Distribution Corp. v. TGX Corp., 950 F.2d 829, 839 (2d Cir.1991) (quotation omitted); see also Alpert’s Newspaper Delivery v. New York Times Co., 876 F.2d 266, 270 (2d Cir.1989).
Undoubtedly, Empresa participated in and shared control of the defense of the Vessel in the in rem action. Empresa did so, however, in a representative capacity. Its interests in the Vessel therefore were not identical to the interests it defended in an action alleging in personam liability. Cf. United States v. International Bhd. of Teamsters, 964 F.2d 180, 184 (2d Cir.1992) (concluding privity requires coinciding interests to third parties). Because the res judicata effects of the in rem judgment affect Empresa only in its representative capacity, we find that Empresa was not in privity with the Vessel. See Hurt v. Pullman, Inc., 764 F.2d 1443, 1448 (11th Cir.1985); cf. Restatement (Second) of Judgments § 39 emt. e (1982) (“[A] trustee who takes control of litigation involving another in order to protect the trust is not on that account bound in a subsequent action in which he appears in his individual capacity.”).
Further, a finding of privity in this instance would negate the principle that “representative capacities must be held separate in order to ensure vigorous pursuit of litigation without concern about the possible impact on other interests.” 18 Charles A. Wright, Arthur R. Miller & Edward H. Cooper, Federal Practice and Procedure § 4451, at 436. While the distinction between in rem and in personam jurisdiction in admiralty cases has its detractors, see, e.g., Law of Admiralty § 9-18, at 615-16, it remains a bedrock principle of admiralty law. We see no reason to undermine that distinction here. Accordingly, we find that the in rem judgment does not bar this action.
III. Collateral Estoppel
Finding that neither the Admiralty Rules nor res judicata bar this in personam action, we next address Empresa’s contention that the district court incorrectly made a finding of in personam liability by applying the doctrine of collateral estoppel. Collateral estoppel, or issue preclusion, bars the relitigation of issues actually litigated and decided in the prior proceeding, as long as that determination was essential to that judgment. See Beck v. Levering, 947 F.2d 639, 642 (2d Cir.1991) (per curiam), cert. denied sub nom., Levy v. Martin, 504 U.S. 909, 112 S.Ct. 1937, 118 L.Ed.2d 544 (1992). Four elements must be met for collateral estoppel to apply: (1) the issues of both proceedings must be identical, (2) the relevant issues were actually litigated and decided in the prior proceeding, (3) there must have been “full and fair opportunity” for the litigation of the issues in the prior proceeding, and (4) the issues were necessary to support a valid and final judgment on the merits. See Gelb v. Royal Globe Ins. Co., 798 F.2d 38, 44 (2d Cir.1986) (setting forth four-part test), cert. denied, 480 U.S. 948, 107 S.Ct. 1608, 94 L.Ed.2d 794 (1987). If these requirements were met, the district court properly es-topped Empresa from relitigating the issue of liability for the damage to the cable pipeline. See Beck, 947 F.2d at 642 (applying Gelb test to offensive collateral estoppel).
Empresa does not contend that the district court improperly estopped it from litigating the issue of Central Hudson’s quantum of damages, and contests only the district court’s finding of liability. Specifically, Empresa argues that (1) it had no “full and fair opportunity” to litigate its liability in the in rem action, (2) its liability was neither litigated nor decided in that action, and (3) since Central Hudson had the opportunity to join Empresa as a defendant in the in rem action and failed to do so, collateral estoppel does not apply. We reject each of these arguments.
[369]*369Given its control of and participation in the litigation, Empresa cannot seriously contend that it had no “full and fair opportunity” to litigate all issues decided in the in rem trial. Cf. Sherman v. Kirshman, 369 F.2d 886 (2d Cir.1966) (refusing to enforce judgment entered against defendants in another federal district court where the prior judgment was in rem and where defendants neither appeared nor litigated action). We thus turn to the central issue: whether Empresa’s liability was fully litigated and decided in the in rem action.
Empresa first contends that its liability was not determined in the in rem action because the district court never distinguished whether the Vessel’s crew, or the pilots Empresa was required to hire to steer the Vessel up the Hudson River, were responsible for the damage to the cable pipeline. Empresa offered the possible negligence of the compulsory pilots as an affirmative defense in the instant action. Empresa thus bore the burden of establishing the pilots’ exclusive negligence. See Avondale Indus. v. International Marine Carriers, 15 F.3d 489, 492-93 (5th Cir.1994) (discussing negligence standards governing relationship of vessel master to compulsory pilot). Empresa failed to provide any evidence of this defense, much less enough to establish a genuine issue of material fact for trial. See Fed.R.Civ.P. 56(e); Matsushita Elec. Indus. v. Zenith Radio Corp., 475 U.S. 574, 586-87, 106 S.Ct. 1348, 1355-56, 89 L.Ed.2d 538 (1986). Further, neither Empresa nor Seir-ild even raised this defense in the in rem trial, nor did Empresa seek to implead the pilots as co-defendants during either action. See The CHINA, 74 U.S. (7 Wall.) 53, 64, 19 L.Ed. 67 (1868) (party asserting compulsory pilot defense must show “affirmatively that the pilot was in fault, and that there was no fault on the part of the officers or crew, which might have been in any degree conducive to the damage”) (quotation omitted). Empresa’s compulsory pilot defense, in short, has no bearing here.
Empresa also contends that the district court’s liability determination in the in rem action was limited solely to the Vessel, and that it made no finding of Empresa’s liability due to the negligence of its officers and crew. The parties entered into a stipulation during the in rem trial, however, in which they agreed that the Vessel’s officers and crew were negligent if the court determined that the Vessel’s anchor caused the damage to the pipeline:4
It has been stipulated by counsel for Central Hudson and counsel for the defendant that if the Court finds the LUNAMAR II dragged her starboard anchor on the Hudson River, then the LUNAMAR II stipulates that relevant statutory regulations and proper navigational precautions and practices were not followed by the crew and officers of the LUNAMAR II.
The district court then explicitly found that the damage to Central Hudson’s pipeline was caused by the dragging of the Vessel’s anchor, thereby also determining the negligence of the Vessel’s officers and crew. Moreover, as the bareboat eharterparty, Empresa was considered the owner of the Vessel pro hac vice. See Reed v. Steamship YAKA, 373 U.S. 410, 83 S.Ct. 1349, 10 L.Ed.2d 448 (1963); Bergan v. International Freighting Corp., 254 F.2d 231, 232 (2d Cir.1958). Thus, Empresa was clearly liable under the principle of respondeat superior for the negligence of the Vessel’s officers and crew, who were in fact Empresa’s employees. See The BARNSTABLE, 181 U.S. 464, 468, 21 S.Ct. 684, 686, 45 L.Ed. 954 (1901) (“As the charterers hired the Barnstable for a definite period, and agreed to select their [370]*370own officers and crew, ... the charterers would be liable for the consequences of negligence in her navigation.”); Uni-Petrol Gesellschaft Fur Mineraloel Produkte M.B.H. v. M/T LOTUS MARU, 615 F.Supp. 78, 80-81 (S.D.N.Y.1985). The district court’s determination that the Vessel caused the damage to the pipeline therefore entailed a finding of Empresa’s liability, and that issue was both necessary to the in rem judgment and fully litigated by the parties.
Finally, Empresa argues that it was available as a defendant in the in rem action, and asserts that Central Hudson’s failure to join it as a defendant precludes its reliance on the collateral estoppel doctrine. Empresa relies on dicta in Parklane Hosiery Co. v. Shore, 439 U.S. 322, 99 S.Ct. 645, 58 L.Ed.2d 552 (1979), as support for its argument.' There, the Supreme Court stated the “general rule” that offensive collateral estoppel should not apply “in cases where a plaintiff could easily have joined in the earlier action or where ... the application of offensive collateral estoppel would be unfair to a defendant.” Id. at 331, 99 S.Ct. at 652. Parklane Hosiery concerned a plaintiff, filing suit on behalf of a class of stockholders, who failed to join an earlier action filed against the same defendants on the same cause of action by the Securities and Exchange Commission (SEC). The Supreme Court did not apply the general rule to the class action, finding that the stockholders probably could not have joined in the action filed by the SEC. See id. at 331-33, 99 S.Ct. at 651-53. These facts do not suggest the inapplicability of collateral estoppel to successive cases involving the same plaintiff and separate defendants, and in any case the Parklane Hosiery Court noted the “preferable approach ... [is] to grant trial courts broad discretion” in determining when collateral estoppel should apply. Id. at 331, 99 S.Ct. at 651. We agree with the district court that the facts of this case amply support the application of collateral estoppel. See, e.g., Beck, 947 F.2d at 642 (affirming use of offensive collateral estoppel against defendants who were not defendants in prior action). Moreover, none of the fairness concerns recognized by the Supreme Court in Parklane Hosiery are present here, as the in rem action did not involve small or nominal damages and the in personam action afforded Empresa no procedural opportunities previously unavailable to it. See Park-lane Hosiery, 439 U.S. at 330-31, 99 S.Ct. at 651-52. The district court therefore properly found Empresa collaterally estopped from contesting its liability for the unrecovered portion of the in rem judgment.
IV. Additional Considerations
Empresa raises two additional grounds for reversal: (1) Central Hudson breached the letter of undertaking it obtained with the insurer of the Vessel by attaching the SANTA ROSA, and therefore the district court erred in denying Empresa’s motion to vacate that attachment, and (2) the district court abused its discretion in its award of prejudgment interest. Both of these claims are without merit.
A. Letter of Undertaking
On January 18, 1988, two days after its cable pipeline was severed, Central Hudson requested a letter of undertaking from the Britannia Steamship Insurance Association (Britannia), the protection and indemnity association in which the Vessel was entered. Britannia issued a $3 million letter of undertaking on January 21, 1988, in exchange for Central Hudson’s promise to refrain from arresting or attaching the Vessel or “any other vessel of the same ownership or any other property belonging to the owners.” Although the letter of undertaking by its express terms only formed a contract between Central Hudson and Britannia, Empresa asserts it was a beneficiary of this agreement, thus arguing that Central Hudson breached the agreement by attaching one of its vessels, the SANTA ROSA The district court rejected this claim, concluding that Central Hudson had not intended to include Empresa as a beneficiary of that agreement.
Empresa’s claim succeeds only if it was a third-party beneficiary to the letter of undertaking. The burden of establishing this status rests on Empresa, as the agreement makes no explicit reference to the company. Thus, Empresa must prove that both [371]*371parties intended the agreement to benefit Empresa. See Owens v. Haas, 601 F.2d 1242, 1250 (2d Cir.), cert. denied, 444 U.S. 980, 100 S.Ct. 483, 62 L.Ed.2d 407 (1979); Chaplin v. Consolidated Edison Co., 579 F.Supp. 1470, 1473 (S.D.N.Y.1984). In other words, Empresa was a third-party beneficiary only if it establishes a right to performance under the agreement and if the surrounding circumstances indicate that Central Hudson intended to provide Empresa with the benefit of such performance. Trans-Orient Marine Corp. v. Star Trading & Marine, 925 F.2d 566, 573 (2d Cir.1991) (citing Restatement (Second) of Contracts § 302 (1981)); see also BAH Banking Corp. v. UPG, Inc., 985 F.2d 685, 696-97 (2d Cir.1993); Septembertide Pub., B.V. v. Stein & Day, 884 F.2d 675, 679 (2d Cir.1989). Finally, we note that any ambiguity in the terms of the letter of undertaking must be resolved against Empresa. See Record Club of America v. United Artists Records, 890 F.2d 1264, 1271 (2d Cir.1989) (ambiguity in contract term should be resolved against party for whose benefit the term was drafted).
These principles demonstrate that Empresa was not an intended third-party beneficiary of the letter of undertaking. First, Central Hudson was not aware of Empresa’s relationship to the Vessel at the time it executed the agreement. Indeed, Empresa did not reveal its interest in the Vessel definitively until it filed a restricted appearance in the in rem, action, almost two years after the parties, entered into the agreement. Accordingly, Central Hudson entered into the letter of undertaking on the assumption that Seiriki, not Empresa, was the party involved, as demonstrated by the fact that Central Hudson included only Seiriki as a defendant in the in rem, action. Thus, without knowledge of Empresa’s status, Central Hudson could not have intended the letter of undertaking to benefit any party but Seiriki, the registered owner of the Vessel.
In any case, even if we assume that Central Hudson was aware of Empresa’s existence as well as its status as a bareboat charterparty, Empresa had the ability to claim its status as owner both to defend the case and to put its assets before the Court. It did not do so, and the record reflects Empresa’s efforts to maintain an ambiguity concerning its relationship to the Vessel. In short, we agree with the district court that the January 21 agreement “necessarily referred to a known owner, not one lurking in the background,” and conclude that Central Hudson did not violate that agreement by attaching the SANTA ROSA.
Empresa also contends that the attachment of the SANTA ROSA should have been vacated because it was undertaken solely with the improper motive of obtaining security for the in rem action. A claimant’s motive in filing an attachment is irrelevant, however, see Nehring v. Steamship M/V POINT VAIL, 901 F.2d 1044, 1052 (11th Cir.1990); Staronset Shipping Ltd. v. North Star Navigation, 659 F.Supp. 189, 190 (S.D.N.Y.1987), and Empresa does not assert that the attachment of the SANTA ROSA violated the procedural requirements of Rule B of the Supplemental Rules. Cf. Integrated Container Serv. v. Starlines Container Shipping, 476 F.Supp. 119, 122 (S.D.N.Y.1979) (“A marine attachment is precluded under Admiralty Rule B(l) only if the defendants have engaged in sufficient activity in the district or the cause of action has sufficient contacts with the district to permit the court to exercise in personam jurisdiction over the defendants ... and in addition [the defendants] can be found within the geographical confines of the district for service of process.”) (citing Seawind Compania, S.A v. Crescent Line, 320 F.2d 580, 582 (2d Cir.1963)). Accordingly, we reject this argument as well.
B. Prejudgment Interest
Finally, Empresa challenges the district court’s award of prejudgment interest. In the in rem action the district court awarded damages of $3,371,937.60 and prejudgment interest of $1,105,646.55, and entered judgment in the total amount of $4,477,584.15 plus costs. Subsequently, based on its finding in the in personam action that Empresa was personally liable for the full amount of the m rem judgment, the court subtracted from the amount of the in rem award [372]*372($4,486,134.44) the $8 million Central Hudson had recovered through the letter of undertaking, leaving an amount of $1,486,134.44. The court then awarded prejudgment interest of 9 percent on this amount, or $364,-761.39, and entered judgment in the in per-sonam action for $1,850,895.83.
Empresa argues that the district court should have calculated prejudgment interest only on the amount of damages awarded in the in rem action that remained unpaid, or $371,937.60, rather than on the unpaid amount of the total in rem judgment (ie., damages plus prejudgment interest). Empresa contends that in reaching the latter determination the district court awarded interest on interest, resulting in an impermissible windfall to Central Hudson.
We review the district court’s award for an abuse of discretion, as it is well established in this Circuit that the allowance of prejudgment interest in admiralty is a matter committed to the district court’s discretion. See Mentor Ins. Co. v. Brannkasse, 996 F.2d 506, 520 (2d Cir.1993); Magee v. U.S. Lines, 976 F.2d 821, 823 (2d Cir.1992); Mitsui & Co. v. American Export Lines, 636 F.2d 807, 823 (2d Cir.1981); see generally Wickham Contracting Co. v. Local Union No. 3, IBEW, 955 F.2d 831, 833-36 (2d Cir.) (discussing general principles underlying award of prejudgment interest), cert. denied, - U.S. -, 113 S.Ct. 394, 121 L.Ed.2d 302 (1992). Where no exceptional circumstances exist which militate against an award of prejudgment interest on a maritime claim, a plaintiff is entitled to have interest included in its recovery. See Magee, 976 F.2d at 823.
The district court correctly considered the damages and prejudgment interest components of the in rem action to have been merged by the judgment. See San Juan Hotel Corp. v. Greenberg, 502 F.Supp. 34, 35 (E.D.N.Y.), aff'd mem., 646 F.2d 562 (2d Cir.1980), cert. denied, 450 U.S. 1043, 101 S.Ct. 1762, 68 L.Ed.2d 241 (1981); 14A Charles A. Wright, Arthur R. Miller & Edward H. Cooper, Federal Practice and Procedure § 3712, at 182. In analogous cases, we have affirmed lower court decisions in which a prior judgment, consisting of both principal and accumulated interest, remained unpaid and a district court renewed the judgment and awarded interest on the entire amount due. See, e.g., Hellenic Lines Ltd. v. Gulf Oil Corp., 359 F.2d 403 (2d Cir.1966) (per curiam) (holding no interest-on-interest problem existed where district court awarded interest on prior judgment amount, which in turn included prejudgment interest); see also United States v. Hannon, 728 F.2d 142 (2d Cir.1984); Kotsopoulos v. Asturia Shipping Co., 467 F.2d 91 (2d Cir.1972). The district court therefore did not abuse its discretion in awarding prejudgment interest on the total amount remaining unpaid from the in rem judgment.
Empresa contends, in the alternative, that any interest awarded in this action actually constituted postjudgment interest awarded on the amount of the in rem judgment, and asserts that such an award should have been calculated at the United States Treasury Bill rate at the time of the decision (approximately 3.24 percent) rather than at 9 percent. See 28 U.S.C. § 1961(a). While Empresa’s argument would have force if Central Hudson merely were executing on the in rem judgment, this action required Central Hudson to establish Empresa’s in personam liability. The in personam judgment therefore constituted an entirely separate judgment. Accordingly, we find that the district court did not abuse its discretion in awarding prejudgment interest at the rate of 9 percent. See Mentor, 996 F.2d at 520 (holding rate at which prejudgment interest on judgment is calculated lies within discretion of district court); Independent Bulk Transp. v. Vessel “MORANIA ABACO”, 676 F.2d 23, 26 (2d Cir.1982) (same).
CONCLUSION
For the reasons stated above, we affirm the judgment of the district court in all respects.