The plaintiff, a public service corporation furnishing electric energy for power and other purposes, seeks to enjoin the enforcement of certain orders of the defendant commission regulating rates to be charged for its service as being in violation of its rights under the contract clause of the Constitution of the United States (article 1, § 10, cl. 1), and the Fourteenth Amendment thereto.

Defendants have moved to dismiss the bill on the ground, among others, that it appears from its averments that the controversy stated is res judicata, and I am of opinion that the motion must .prevail. It appears from the bill that after the rendition of the orders in question plaintiff filed with the defendant board a petition for a rehearing of the controversy, which petition was upon consideration denied; and it is alleged:

[1-3] This application was made within the time prescribed by and in pursuance of section 67 of the Public Utilities Act (Stat. Cal. Extra Session 1911, pp. 18, 55), which gives the right to a party deeming himself aggrieved to apply to the Supreme Court’ of the state, within 30, days after the decision by the commission on a petition for rehearing, to have—

As the terms of the statute clearly import, the review there contemplated is strictly a judicial one, before the court sitting in its capacity as a judicial tribunal, limited to a consideration of the purely legal aspects and propriety of the act of the commission under review, and not, as in Prentis v. Atlantic Coast Line Co., 211 U. S. 210 , 29 Sup. Ct. 67, 53 L. Ed. 150 , as a part of the rate-fixing power of the State. Detroit & Mackinac R. Co. v. Michigan Railroad Commission, 235 U. S. 402 , 35 Sup. Ct. 126, 59 L. Ed. 288 ; Palermo Land & Water Co. v. Railroad Commission of California et al. (D. C.) 227 Fed. 708 .

Under this statute, when plaintiff’s petition for rehearing was denied, the legislative history of the orders complained of was complete; the final step to make them effective having been taken. The question of their validity then became a justiciable one, and plaintiff could at once proceed to test that question in the courts. Palermo Land & Water Co. v. Railroad Commission, supra. For that purpose plaintiff was at liberty to proceed either in the state court, as it did, or in this court, since the state statute, even if so intended, could not restrict or abridge its right to invoke the jurisdiction of the latte^’court in any case falling within its jurisdiction. It chose to present its case to the state court, and, as we have seen, upon the same questions of right as those presented here. That court was in all respects as competent and as much under obligation to protect those rights, constitutional or otherwise, as this court, and it will, of course, be presumed that it kept that obligation in view in passing upon plaintiff’s application.

In this state of the case I am unable to perceive how the objection that the action of the state court is conclusive of the controversy, and that plaintiff is now precluded from bringing the same grievance here, may be avoided. It has had its day in court. Detroit & Mackinac R. Co. v. Michigan Railroad Commission, supra. While it might *199 have sought a review of the decision of the state court at the hands of the Supreme Court of the United States by appropriate proceedings under section 237 of the Judicial Code (Act March 3, 1911, c. 231, 36 Slat. 1156 [Comp. St. § 1214])—Williams v. Bruffy, 102 U. S. 248, 255 , 26 L. Ed. 135—it did not see fit to do so, and it cannot now be heard to litigate the controversy anew in this court. The ruling in the Michigan case would seem to be conclusive on this point. And on the question of the functions of the state court the present case would appear to fall more clearly within the rule there announced than the case there presented, by reason of the less explicit language of the Michigan statute, leaving the question seriously open to construction. Here the explicit limitations found in the California act as to the purpose and extent of the review by the state court leave no possible room for construction.

The contention by plaintiff that the ruling of the state court is not a proper predicate for invoking the doctrine of res judicata, in that it is not a judgment “on the merits,” but purely a negative determination or refusal to assume jurisdiction, is unsound. We are bound to assume, if we accept the averments of the bill, that the petition put that court in full and complete possession of all the facts upon which it relies here (Detroit & Mackinac R. Co. v. Michigan Railroad Commission); and, that being true, the denial of the petition was necessarily a final judicial determination (Williams v. Bruffy, supra), based on the identical rights asserted in this court, and it was between the same parties. Such a determination is as effectual as an estoppel as would have been a formal judgment upon issues of fact. Calaf v. Calaf, 232 U. S. 371 , 34 Sup. Ct. 411, 58 L. Ed. 642 : Hart Steel Co. et al. v. Railroad Supply Co., 244 U. S. 294, 299 , 37 Sup. Ct. 506, 61 L. Ed. 1148 . Nor is it material that the reasons for the conclusion reached hy the court are not given. We are not concerned with the reasoning, but only with the judgment, and it must be assumed in support of the latter that upon the facts presented to it the state court upon due consideration reached the conclusion that plaintiff’s rights had not been violated. Hart Steel Co. et al. v. Railroad Supply Co. and Williams v. Bruffy, supra.

Lastly, it is an unwarranted assumption that the doctrine invoked is one of a highly technical character, to be reluctantly enforced. As stated in the Hart Steel Case:

It results that the bill must be dismissed; and it is so ordered.