TAMM, Circuit Judge:
The primary issue involved in this case is whether a rate of return allowed Florida Gas Transmission Company (hereinafter “Florida Gas”) by the Federal Power Commission (hereinafter “the Commission”) is invalid because the Commission did not make adequate findings to support its decision. After consideration of this issue and all others presented, we hold that the findings given in support of the rate determination are inadequate and remand the case to the Commission for further proceedings.
I. History of the Case
Florida Gas is a natural gas pipeline company subject to the Commission’s jurisdiction under the Natural Gas Act, 15 U.S.C. § 717 et seq. (1964). As part of its operations, Florida Gas transports gas produced in Texas and Louisiana by Sun Oil Company (hereinafter “Sun Oil” or “Sun”) to Florida Power Corporation (hereinafter “Florida Power”) and Florida Power and Light Company (hereinafter “Florida P&L”). The rates charged for this transportation are set forth in FPC Rate Schedules T-l (for Florida Power) and T-2 (for Florida P&L). Sun Oil has entered into contracts with Florida Power and Florida P&L whereby the price it receives for gas sold to these companies is tied to [766]*766Florida Gas’ transportation rates. These contracts require Sun Oil to absorb half the amount by which the T-l rate exceeds 14 cents per MM Btu1 transported and the entire amount by which the T-2 rate exceeds 17.5 cents per MM Btu.
On August 14, 1965, in what was later designated FPC Docket No. RP66-4, Florida Gas filed to increase its T-l rate from 14.6 cents to 17.9 cents per MM Btu and its T-2 rate from 18.5 cents to 21.9 cents per MM Btu. Pursuant to section 4 of the Natural Gas Act, 15 U. S.C. § 717c (1964), these new rates became effective, subject to refund, on November 1,1965.
Early in 1967 hearings were held before one of the Commission’s Hearing Examiners to determine whether Sun Oil was entitled to a refund under the new rates. In the meantime Florida Gas received authorization from the Commission for a major expansion of its pipeline capacity. Florida Gas Transmission Co., 37 F.P.C. 424 (1967). In this separate proceeding Florida Gas had offered to make certain rate reductions and the Commission in its opinion conditioned the company’s expansion upon its adoption of these lower rates. (Id. at 445.) The Commission also stated that a rate investigation pursuant to section 5(a) of the Natural Gas Act, 15 U.S.C. § 717d (1964), would be held to determine whether the new rates were reasonable in light of Florida Gas’ expanded operation. (Id.) On March 31, 1967, in what later became Docket RP68-1, Florida Gas made the rate reduction filing required by the Commission. Shortly thereafter Sun Oil moved for consolidation of this docket with the RP66-4 rate proceedings. The Commission granted this motion and later allowed yet another rate proceeding, Docket RP69-2, to be consolidated with the earlier two dockets.
The reduced T-l and T-2 rates involved in Docket RP68-1 went into effect on June 10, 1968. Docket RP66-4, the only proceeding at issue here, therefore relates only to the “locked in” period from November 1, 1965 to June 9, 1968. Because of the substantial delay which ensued as a result of consolidating the three dockets, the parties decided that the RP66-4 portion of the ease should be tried not on a test year basis, as originally agreed, but on the basis of actual costs incurred during the entire “locked in” period. Accordingly, Florida Gas was permitted to update its cost of service evidence to cover this period.
The consolidated cases were then “phased,” that is, the Commission first determined the rates of return, leaving the other issues involving cost of service and rate design to be resolved at a later date. In the proceedings before the Commission’s Hearing Examiner in the first “phase,” the primary issue presented as to Docket RP66-4 was whether Florida Gas was estopped from claiming a rate of return greater than 6.5 per cent. The rates it requested in its original filing in 1965 were designed to generate this return, and the Commission’s Staff felt the company was bound by this figure. (J.A. 368.) Since the rates in effect during the “locked in” period of this docket had in fact generated a return of 6.98 per cent, the Staff felt Sun Oil was entitled to a refund.2
The Examiner rejected this argument, holding that Florida Gas was not bound by the rate of return utilized in its original filing. (J.A. 374.) He could not determine from the record before him what would be a fair and reasonable [767]*767rate of return (J.A. 367), apparently because “no one cross-examined the principal rate of return evidence put in the record by Florida Gas [or] * * * put in an answering case or evidence of any kind on the subject.” (J.A. 368.) The Examiner did feel, however, that Florida Gas had established a prima fa-cie case for the 6.98 per cent actually earned. (J.A. 374.) To provide “fairness to all sides” (J.A. 368), the Examiner allowed Sun Oil and the Commission’s Staff thirty days after the issuance of his opinion in which to present new evidence. (J.A. 374.)
Neither Sun Oil nor the Commission’s Staff took advantage of this opportunity to contest the merits of the 6.98 figure before the Examiner. Instead, they appealed his decisions in all three dockets to the Commission, which handed down its rate determinations for the three dockets in FPC Opinion No. 561. (J.A. 396.) With regard to Docket RP66-4, the Commission agreed with the Examiner that Florida Gas was not limited by its filing to a 6.5 per cent rate of return. (J.A. 401.) It held that a fair and reasonable rate of return for the “locked in” period involved in this docket would be 7 per cent, which allowed Florida Gas a return on equity of 9.36 per cent. (J.A. 404.) For the later two dockets the Commission allowed a rate of return of 7.25 per cent, which would result in a return on equity of 9.9 per cent. (J.A. 418.) Sun applied for a rehearing, contesting only the rate of return allowed in Docket RP66-4. It alleged that this rate was not supported by substantial evidence or adequate findings and that the Examiner, by in effect requesting Sun Oil to come forward with additional evidence, unlawfully shifted the burden of proof from Florida Gas to Sun Oil. The Commission denied Sun’s application and this appeal followed.
II. The Adequacy of the Commission’s Findings
A. The Tests to be Applied.
In the leading case of Bluefield Waterworks and Improvement Co. v. Public Service Comm., 262 U.S. 679, 43 S.Ct. 675, 67 L.Ed. 1176 (1923), the Supreme Court set forth guidelines as to what constitutes a proper return on equity, return on equity being the critical factor involved in determining rate of return.3 There the court said:
Free access — add to your briefcase to read the full text and ask questions with AI
TAMM, Circuit Judge:
The primary issue involved in this case is whether a rate of return allowed Florida Gas Transmission Company (hereinafter “Florida Gas”) by the Federal Power Commission (hereinafter “the Commission”) is invalid because the Commission did not make adequate findings to support its decision. After consideration of this issue and all others presented, we hold that the findings given in support of the rate determination are inadequate and remand the case to the Commission for further proceedings.
I. History of the Case
Florida Gas is a natural gas pipeline company subject to the Commission’s jurisdiction under the Natural Gas Act, 15 U.S.C. § 717 et seq. (1964). As part of its operations, Florida Gas transports gas produced in Texas and Louisiana by Sun Oil Company (hereinafter “Sun Oil” or “Sun”) to Florida Power Corporation (hereinafter “Florida Power”) and Florida Power and Light Company (hereinafter “Florida P&L”). The rates charged for this transportation are set forth in FPC Rate Schedules T-l (for Florida Power) and T-2 (for Florida P&L). Sun Oil has entered into contracts with Florida Power and Florida P&L whereby the price it receives for gas sold to these companies is tied to [766]*766Florida Gas’ transportation rates. These contracts require Sun Oil to absorb half the amount by which the T-l rate exceeds 14 cents per MM Btu1 transported and the entire amount by which the T-2 rate exceeds 17.5 cents per MM Btu.
On August 14, 1965, in what was later designated FPC Docket No. RP66-4, Florida Gas filed to increase its T-l rate from 14.6 cents to 17.9 cents per MM Btu and its T-2 rate from 18.5 cents to 21.9 cents per MM Btu. Pursuant to section 4 of the Natural Gas Act, 15 U. S.C. § 717c (1964), these new rates became effective, subject to refund, on November 1,1965.
Early in 1967 hearings were held before one of the Commission’s Hearing Examiners to determine whether Sun Oil was entitled to a refund under the new rates. In the meantime Florida Gas received authorization from the Commission for a major expansion of its pipeline capacity. Florida Gas Transmission Co., 37 F.P.C. 424 (1967). In this separate proceeding Florida Gas had offered to make certain rate reductions and the Commission in its opinion conditioned the company’s expansion upon its adoption of these lower rates. (Id. at 445.) The Commission also stated that a rate investigation pursuant to section 5(a) of the Natural Gas Act, 15 U.S.C. § 717d (1964), would be held to determine whether the new rates were reasonable in light of Florida Gas’ expanded operation. (Id.) On March 31, 1967, in what later became Docket RP68-1, Florida Gas made the rate reduction filing required by the Commission. Shortly thereafter Sun Oil moved for consolidation of this docket with the RP66-4 rate proceedings. The Commission granted this motion and later allowed yet another rate proceeding, Docket RP69-2, to be consolidated with the earlier two dockets.
The reduced T-l and T-2 rates involved in Docket RP68-1 went into effect on June 10, 1968. Docket RP66-4, the only proceeding at issue here, therefore relates only to the “locked in” period from November 1, 1965 to June 9, 1968. Because of the substantial delay which ensued as a result of consolidating the three dockets, the parties decided that the RP66-4 portion of the ease should be tried not on a test year basis, as originally agreed, but on the basis of actual costs incurred during the entire “locked in” period. Accordingly, Florida Gas was permitted to update its cost of service evidence to cover this period.
The consolidated cases were then “phased,” that is, the Commission first determined the rates of return, leaving the other issues involving cost of service and rate design to be resolved at a later date. In the proceedings before the Commission’s Hearing Examiner in the first “phase,” the primary issue presented as to Docket RP66-4 was whether Florida Gas was estopped from claiming a rate of return greater than 6.5 per cent. The rates it requested in its original filing in 1965 were designed to generate this return, and the Commission’s Staff felt the company was bound by this figure. (J.A. 368.) Since the rates in effect during the “locked in” period of this docket had in fact generated a return of 6.98 per cent, the Staff felt Sun Oil was entitled to a refund.2
The Examiner rejected this argument, holding that Florida Gas was not bound by the rate of return utilized in its original filing. (J.A. 374.) He could not determine from the record before him what would be a fair and reasonable [767]*767rate of return (J.A. 367), apparently because “no one cross-examined the principal rate of return evidence put in the record by Florida Gas [or] * * * put in an answering case or evidence of any kind on the subject.” (J.A. 368.) The Examiner did feel, however, that Florida Gas had established a prima fa-cie case for the 6.98 per cent actually earned. (J.A. 374.) To provide “fairness to all sides” (J.A. 368), the Examiner allowed Sun Oil and the Commission’s Staff thirty days after the issuance of his opinion in which to present new evidence. (J.A. 374.)
Neither Sun Oil nor the Commission’s Staff took advantage of this opportunity to contest the merits of the 6.98 figure before the Examiner. Instead, they appealed his decisions in all three dockets to the Commission, which handed down its rate determinations for the three dockets in FPC Opinion No. 561. (J.A. 396.) With regard to Docket RP66-4, the Commission agreed with the Examiner that Florida Gas was not limited by its filing to a 6.5 per cent rate of return. (J.A. 401.) It held that a fair and reasonable rate of return for the “locked in” period involved in this docket would be 7 per cent, which allowed Florida Gas a return on equity of 9.36 per cent. (J.A. 404.) For the later two dockets the Commission allowed a rate of return of 7.25 per cent, which would result in a return on equity of 9.9 per cent. (J.A. 418.) Sun applied for a rehearing, contesting only the rate of return allowed in Docket RP66-4. It alleged that this rate was not supported by substantial evidence or adequate findings and that the Examiner, by in effect requesting Sun Oil to come forward with additional evidence, unlawfully shifted the burden of proof from Florida Gas to Sun Oil. The Commission denied Sun’s application and this appeal followed.
II. The Adequacy of the Commission’s Findings
A. The Tests to be Applied.
In the leading case of Bluefield Waterworks and Improvement Co. v. Public Service Comm., 262 U.S. 679, 43 S.Ct. 675, 67 L.Ed. 1176 (1923), the Supreme Court set forth guidelines as to what constitutes a proper return on equity, return on equity being the critical factor involved in determining rate of return.3 There the court said:
A public utility is entitled to such rates as will permit it to earn a return on the value of the property which it employs for the convenience of the public equal to that generally being made at the same time and in ■the same general part of the country on investments in other business undertakings which are attended by corresponding risks, and uncertainties; but it has no constitutional right to profits such as are realized or anticipated in highly profitable enterprises or speculative ventures. The return should be reasonably sufficient to assure confidence in the financial soundness of the utility and should be adequate, under efficient and economical management, to maintain and support its credit and enable it to raise the money necessary for the proper discharge of its public duties.
(Id. at 692-693, 43 S.Ct. at 679. See also FPC v. Hope Natural Gas Co., 320 U.S. 591, 603, 64 S.Ct. 281, 88 L.Ed. 333 (1944). Judgments made under these guidelines are obviously qualitative, and, since the Commission is acknowledged to have expertise in this complex field, its decisions are entitled to great weight. It is, however, required under the Administrative Procedure Act, 5 U.S.C. § 1001 et seq. (1964), to include in each of its decisions “a statement of * * * findings and conclusions, as well as the reasons or basis therefor, upon all the [768]*768material issues of fact, law or discretion presented on the record * * * ” 5 U.S.C. § 1007(b) (1964). These findings and conclusions must be sufficient to demonstrate that the Commission has considered “all relevant facts” (Bluefield Waterworks and Improvement Co. v. Public Service Comm., supra, 262 U.S. at 692-693, 43 S.Ct. 675) and that it has “exercised its practical, expert judgment.” 4 State Corp. Comm. of Kansas v. FPC, 206 F.2d 690, 722 (8th Cir. 1953) cert. denied sub nom. Northern Natural Gas Co. v. FPC, 346 U.S. 922, 74 S.Ct. 307, 98 L.Ed. 416 (1954).
B. The Docket RP66-4 Portion of Opinion 561.
Opinion 561 is divided into several portions. The first of these is devoted to Docket RP66-4, but findings and conclusions made elsewhere in the opinion are arguably relevant to the rate determination made in this docket. To simplify analysis of the case we will first consider the findings and conclusions set forth in the RP66-4 portion and will then examine those given in the remainder of the opinion.
In the Docket RP66-4 portion of its opinion the Commission first summarized briefly the testimony of Dr. Dorau, Florida Gas’ witness, who had “presented evidence of comparable earnings, cost of debt capital and the return needed for capital attraction” and had concluded that a rate of return of 6.88 per cent would not be excessive.5 (J.A. 402.) The Commission then gave the equity and debt ratios and the cost of embedded debt for Florida Gas for the period in question and stated that it had reviewed the other economic evidence in the record. (J.A. 403.) Finally, the Commission reviewed the rates of return and returns on equity actually earned by other natural gas companies and by companies in the Bell System and indicated that it used these comparative earnings as a basis in determining that Florida Gas’ rate of return should be seven per cent. (J.A. 404.)
We feel these findings and conclusions are clearly insufficient to support the Commission’s rate determination. Our primary authority for this statement is State Corp. Comm. v. FPC, supra, in which a Commission opinion very similar to this portion of Opinion 561 was found to be defective. There the Commission also made a general reference to the evidence in the record and gave the cost of embedded debt and the equity and debt ratios of the company whose rates were in question, Northern Natural Gas Company (hereinafter “Northern”). (Id., 206 F.2d at 718.) In determining the rate of return to be allowed Northern, the Commission seemed to rely primarily upon an analy[769]*769sis of the yields of the common stocks of several natural gas companies.® (Id. at 719.)
After reviewing several earlier rate of return cases, the Eighth Circuit concluded that “much broader discussions and considerations were gone into in other cases than are to be found in the Commission’s opinion in the case under review.” (Id. at 720.) Although the court agreed that comparative yields on common stocks were relevant in determining rates, it did not believe they were so all important as to obviate the need for consideration of such matters as the financial history and position of Northern. (Id. at 719-720.) Moreover, it felt the Commission’s study of comparative yields was of questionable validity because the Commission had not first weighed Northern’s risks against those of the other companies whose yields were compared with Northern’s. (Id. at 722.) Finally, the court said that the Commission’s statement that it had examined all the evidence in the record was not sufficient to show “that the conclusion of the Commission as to the rate of return is the result of the application of the Commission’s expertise and judgment * * *.” (Id. at 723.)
The only difference between the opinion of the Commission reviewed in State Corporation Commission and the Docket RP66-4 portion of Opinion 561 is that in the latter the Commission relied upon comparative earnings rather than comparative yields on common stocks.6
7 This difference is not significant because comparative earnings, like comparative yields, cannot be applied directly to determine the rate of return for a given company; more intensive economic analysis of the company is required. Thus, in Natural Gas Pipeline Co. of America, 40 F.P.C. 81, 90 (1968), it was held that actual earnings of other utility companies could be used only to set a ceiling on the rate of return to be allowed. There the Commission said that these earnings “[are] not amenable to a direct translation into a rate of return allowance” because the companies being used for purposes of comparison might have different risks than the company under consideration, might be regulated by agencies with different standards than the Commission, and might have earnings from activities not regulated by any agency. Id. Accord, Panhandle Eastern Pipe Line Co., 40 F.P.C. 98, 107 (1968).
Even in Opinion 561 the Commission recognized the dangers involved in using comparative earnings in rate of return determinations. In criticizing Dr. Dorau’s testimony as to the proper rate to be allowed in Dockets RP68-1 and RP69-2 it stated:
Dr. Dorau’s conclusion is a manifestation of the doctrine that actual earnings of other companies are fair return, which in turn becomes the standard against which lesser returns are to be deemed less than a fair return. But actual earnings of other companies by reason of being earned are not thereby converted into fair return. Among the many difficulties and complexities entailed in comparing earnings in addition to varying capital structures and operational problems, is, in many instances, the necessity to adjust for the upward bias due to the impact of non-utility earnings.
(J.A. 410.) In addition, at the conclusion of its discussion of the RP66-4 rates the Commission said that it “recognized the inherent weakness in the utilization of selected companies for establishing by comparison therewith the appropriate return to be allowed the in[770]*770stant company.” (J.A. 404.) However, the next line of the opinion reads:
Nevertheless we are persuaded that such evidence does present a basis for which [sic] we may form a judgment. Natural Gas Pipeline Company. * * * *
Although the Commission cited Natural Gas Pipeline Company for this statement, the statement certainly seems to authorize a much greater reliance on comparative earnings than was sanctioned in that case. The Commission thus seems to have ignored its own better judgment and to have relied heavily on the evidence of actual earnings of other utility companies in setting the RP66-4 rate of return.
Even if the Commission did use these rates only to set a ceiling this portion of its opinion, standing alone, would be defective because the other findings and conclusions contained therein are not sufficient to support the Commission’s rate of return determination. We must, therefore, consider whether the findings and conclusions located elsewhere in Opinion 561 provide adequate support for the RP66-4 rate determination.
C. The Remainder of Opinion 561.
The Commission consolidated its discussion of the factors bearing upon the rates of return to be allowed in Dockets RP68-1 and RP69-2. In this discussion it first analyzed the risks involved in Florida Gas’ operation and concluded that the company was “no more of a risk than other mature pipelines.” (J. A. 413.) It then stated that in setting the rates of return for Dockets RP68-1 and RP69-2 it gave full consideration to the fact that Florida Gas’ cost of embedded debt for the period covered by these dockets was a high 6.21 per cent.8 (J.A. 415.) Next, the Commission quoted figures which showed that the rate of return on equity allowed Florida Gas was in the lower range of equity allowances given in contested rate of return cases since 1960. (J.A. 417-18.) Finally, the Commission noted with approval that Florida Gas had increased the percentage of debt in its capital structure.9
The factors given above are those the Commission normally considers in making rate of return determinations. However, there is no indication that the Commission considered these factors in setting the RP66-4 rates; in fact, all indications are to the contrary. The Commission expressly stated that its discussion of these factors pertained to Dockets RP68-1 and RP69-2. The portion of its opinion containing this discussion was entitled “Overall Rate of Return for Docket Nos. RP68-1 and RP69-2.” (J. A. 413.) By contrast, the heading given this discussion and the Commission’s use therein of figures pertaining only to the latter two dockets strongly suggest that the discussion was not intended to apply to Docket RP66-4.
This interpretation is borne out by the fact that the Commission did not provide any explanation as to how the figures and analyses given in the last portion of its opinion apply to the RP66-4 rate of return determination. For example, in setting the rate of return in the latter two dockets the Commission apparently relied to some extent upon the increase in the percentage of debt in Florida Gas’ capital structure from 64.-46 per cent during the period covered by RP66-4 to 71.73 per cent at the time of the last docket (J.A. 418); it did not, however, indicate how it evaluated the 64.46 per cent figure in setting the RP66-4 rate of return. Similarly, although Florida Gas’ cost of embedded debt was high throughout the period cov[771]*771ered by these three dockets, the Commission’s discussion of the 6.21 per cent cost of embedded debt does not seem adequate to explain how the 5.55 per cent figure applicable during the period covered by Docket RP66-4 figured in its rate determination in this docket. Without guidance as to how the Commission evaluated the factors of costs of debt and percentage of debt in connection with Docket RP66-4, we cannot be sure it considered them at all. Moreover, even if we were to assume that the Commission considered these factors, we could not properly review its decision because of its failure to explain in sufficient detail the bearing which these factors had on its RP66-4 rate of return determination.
The Commission’s statement in the first portion of Opinion 561 to the effect that actual earnings of other utility companies establish a basis for setting rates of return (J.A. 404) is also relevant to our study of the factors relied upon by the Commission in its RP66-4 rate of return determination. As we explained earlier, this statement, in context, seems to indicate that the Commission based this determination in large part upon its analysis of these comparative earnings. The statement thus lends credence to the premise that the Commission ignored many of the factors mentioned later in its opinion in setting the RP66-4 rate of return.
Finally, we turn to the Examiner’s disposition of Docket RP66-4. The Examiner did not make specific findings on the evidence presented as to this docket. Moreover, he made the revealing comment “that the final answer [as to what is a fair rate of return] is not yet available from this record.” (J.A. 367.) The Examiner’s failure to make findings and his criticism of the record do not of themselves render the Commission’s rate of return determination invalid. They do, however, provide yet another indication that the evidence Florida Gas presented as to Docket RP66-4 was at no point subjected to intensive analysis by the Commission.
Thus, we do not feel that the findings given in Opinion 561 are sufficient to demonstrate that the Commission has “exercised its practical, expert judgment” with respect to the RP66-4 rates here in question. Without the proper guidance from the Commission, we cannot say with certainty that Florida Gas is entitled to a seven per cent rate of return for this docket. The evidence in the record is extensive and lends itself to different interpretations, as is indicated by Chairman White’s dissenting opinion. (J.A. 422-28.) It should also be noted that no expert witnesses testified that seven per cent was a reasonable rate of return for this docket; Florida Gas’ witnesses addressed themselves only to the 6.5 per cent and 6.88 per cent figures anticipated at the time they testified. (See note 5, supra.) Since we are not authorized “to substitute our judgment for that of the Commission” (State Corp. Comm. v. FPC, supra, 206 F.2d at 722), we must remand the case to the Commission for a more complete statement of the facts and reasons bearing upon its decision.10
III. The Need for a Hearing
The only remaining question is whether the Commission should offer Sun Oil a hearing on remand. Sun has not specifically requested a hearing, but it has raised the issue by implication with its contention that it did not waive any rights by failing to oppose the merits of the 6.5 per cent rate of return [772]*772when the case was before the Hearing Examiner. (Reply Brief for Appellant at 11.) Sun technically had two opportunities to present evidence and arguments to the Examiner, but it is questionable whether either of these was sufficient to provide it a fair hearing as to the rate of return to be allowed in Docket RP66-4. Sun claims that it was not notified that the rate of return issue was to be contested at the hearing which was held. (Reply for Appellant at Ills.) According to Sun, statements made at the prehearing conference and in the Examiner’s report of this conference misled it into believing that all parties were satisfied with a 6.5 per cent rate of return and would not raise this issue at the hearing. {Id. at 11.) Contrary to Sun’s allegation, the transcript of the prehearing conference and the Prehearing Conference Report indicate that Florida Gas did not agree to the 6.5 per cent rate of return. (J.A. 101, 339.) However, these documents also reveal that the Examiner had decided at the time of the prehearing conference that this was the proper rate to be granted. {Id.) Although he allowed Florida Gas to introduce evidence for use on appeal (J.A. 339), he stated that he himself was not going to “study [the rate of return issue] any more.” (J.A. . 101.) Obviously, the Examiner later reversed his position. In these circumstances Sun might well have been confused as to whether the RP66-4 rate of return was to be contested at the hearing. The Examiner must have felt so, because in his opinion, written after the hearing, he stated that “further proceedings must be afforded [on the RP66-4 rate of return], in fairness to all sides.” (J.A. 368.)
The issue thus becomes whether the Examiner remedied the deficiency in the original hearing by granting Sun Oil 30 days after the issuance of its opinion in which to file “any appropriate counter-pleading and evidence.” (J.A. 374.) Sun contends that, far from providing it the opportunity for a fair hearing on the rate of return issue, this action on the part of the Examiner shifted the burden of proof from Florida Gas to Sun in violation of section 4(e) of the Federal Power Act, 15 U.S.C. § 717c(e) (1964). While we do not feel the facts are sufficient to establish that the Examiner ignored the statutory mandate as to the placing of the burden of proof, we do feel he placed Sun in a very delicate position. It was forced to present complicated economic evidence and arguments in a relatively short time; the 6.-98 figure, which the Examiner admitted might not be the “final answer” (J.A. 367), was to be adopted if it failed to do so. Perhaps these considerations would not appear persuasive if the issue of the adequacy of the hearing afforded Sun Oil had been argued more extensively before us. In the present posture of the case, however, we feel they provide sufficient reason for us to require the Commission to grant Sun an opportunity to be heard on the question of the rate of return to be allowed in Docket RP66-4.
The dissent contends that offering Sun a hearing is unnecessary because Sun does not want to introduce evidence bearing upon the rate of return in Docket RP66-4. This may be the case; if so, nothing will establish it more quickly than by offering Sun what is unquestionably a fair hearing. We prejudice no party by requiring this hearing, and we may well avoid another time-consuming appeal.
Reversed and remanded for proceedings consistent with this opinion.