Appellants seek review of a Massachusetts district court order that effectively stays their action (brought to compel arbitration) while an Ohio federal district court proceeds with a related case. We find that his order is not appealable. Treating the appeal as a petition for mandamus, we hold that the district court had adequate discrеtionary authority to enter the challenged order.
I
The underlying dispute in this case concerns the value of certain assets that the appellee Borden bought from the appellant Acton in 1980. Borden claims that under the contract the purchase price should have been adjusted downward. Acton claims the price should have been adjusted upward. Thе contract sets forth a procedure for resolving this type of dispute. The dispute is to be arbitrated by Acton’s accountant, Arthur Young & Co., and by Borden’s accountant, Price Waterhouse & Co. If these two firms cannot agree, they are to select jointly a third firm of independent accountants which shall arbitrate the dispute. If they cannot agree upon a third firm, then a firm of independent accountants will be selectеd by lot. 1
Borden and Acton both acknowledge that their accountants were unable to resolve the dispute. Borden claims, however, that the two accounting firms agreed upon a third firm, namely Arthur Andersen & Co., *379 to arbitrate the dispute. Acton denies that the two accounting firms agreed upon a third firm as arbitrator, and it seeks the appointment of an arbitrator “by lot.”
Federаl court proceedings began on April 9, 1981, when Borden sued Acton in Ohio seeking rescission of the sale contract or damages based upon a host of alleged breaches. Among many other matters, the Ohio complaint demanded that, as to the valuation dispute, Acton “be compelled to abide by the determination of Arthur Andersen & Co.” Two months later, on June 9, 1981, Aсton filed a claim in the federal district court for Massachusetts under the Federal Arbitration Act, 9 U.S.C. § 4, seeking an order to compel arbitration before a “firm of independent accountants selected by lot.” Acton sought a speedy determination of this claim, moving separately for “an order to show cause why the prayers to compel arbitration ... should nоt be granted,” and asking for a hearing within ten days. At the same time, Acton filed a motion in Ohio seeking a stay of those proceedings.
Ten days later, on June 19, 1981, Borden responded to Acton’s stay motion in Ohio with a “Memorandum in Partial Support of [Acton’s] Motion for Stay.” In that document, Borden expanded upon the arbitration request in its Ohio complaint by asking the Ohio court either tо confirm the selection of Arthur Andersen or to select another arbitrator by lot. And, on June 22 (the day set for hearing on Acton’s motion in Massachusetts) Borden moved to stay the Massachusetts proceeding on the ground that the same issue was pending in Ohio.
On July 10, the Massachusetts district court granted Borden’s motion for a stay and denied Acton’s motion to compel arbitration immеdiately. The court reasoned that “where, as here, a motion which is in substance, if not in form, a motion to compel arbitration is pending in conjunction with a prior action, the interests advanced by the Arbitration Act would not be served by our proceeding summarily to trial” on the issue of whether there was a “failure, refusal or neglect” to arbitrate. 9 U.S.C. § 4. Acton has apрealed from these Massachusetts district court determinations.
II
We first consider whether the district court’s two orders are appealable. In an initial order entered in this case in response to Borden’s motion to dismiss the appeals, we noted that a final order under 9 U.S.C. § 4 is appealable.
See, e.g., New England Power Co. v. Asiatic Petroleum Corp.,
Upon further consideration, we have concluded that we were wrong in finding that the district court’s denial of Acton’s arbitration motion was aрpealable. 2 This denial was not, as we had first believed, final. Rather, it was provisional. The dis *380 trict court made clear in its opinion that it simply did not wish to proceed “summarily” to trial. 3 The district court left itself free to return to Acton’s basic complaint, if, for example, the Ohio court should choose not to resolve the factual and legal issues related to arbitration, or, if, say, the Ohio court, accepting Acton’s version of the facts, should decide that the “lottery” to select the arbitrator ought to take place in Massachusetts. 4 Thus, the dismissal is not “final” and does not give rise to an appeal as of right under 28 U.S.C. § 1291. 5 Moreover, the practical effect of the order is simply to stay the Massachusetts proceedings. The aрpealability of the order should thus be governed by the same considerations that determine the appealability of the order granting Borden’s request for a stay.
Ordinarily, a decision by a district court to stay litigation before it pending developments in a different action involving the same issues is not appealable. Such a highly discretionary “stay” decision,
Landis
v.
North American Co.,
There are certain exceptions in the case law to this general rule of nonappealability. An examination of each of these exceptions suggests, however, that none of them applies here.
First, there are “collateral order” cases, whiсh allow an appeal where there is an “important claim of right ‘separable from, and collateral to’ rights asserted in the main cause of action which may be lost if appellate consideration is delayed. . . . ”
New England Power Co. v. Asiatic Petroleum Corp.,
Second, appeals have sometimes been allowed from stays entered to permit state courts to consider potentially determinative issues of state law.
E.g. Druker
v.
Sullivan,
Third, there are a host of cases concerning the appealability of orders staying, or refusing to stay, arbitration proceedings themselves.
See, e.g., New England Power Co. v. Asiatic Petroleum Corp., supra; Lummus Co. v. Commonwealth Oil Refining Co., Inc.,
Fourth, appeals have sometimes been allowed from stay orders entered in suits where a party has sought preliminary in-junctive relief.
See, e.g., Goldberg v. Carey,
Finally, appeals are sometimes allowed from stay orders that effectively terminate the actions in which they are granted.
See, e.g, Amdur v. Lizars,
In sum, we believe that the orders entered in this case — neither of which amounted to more than a stay of the proceedings — are not appealable.
Ill
Although Acton’s appeals are not properly before us, Acton suggests that we treat its appeal as a petition for mandamus. Acton likely would have filed an express petition for mandamus had it not believed, due to our prior order, that at least one of its appeals was proper. We therefore treat these appeals as petitions for mandamus under the All Writs Act, 28 U.S.C. § 1651(a).
United States v. Sorren,
Mandamus is suitable as a remedy, however, only in “extraordinary situations.”
Kerr
v.
United States District Court,
Borden’s Ohio action contained a dеmand that Acton be compelled to abide by a decision of Arthur Andersen. Acton’s later suit in Massachusetts sought to compel arbitration with an arbitrator selected by lot. The claims in the two suits were overlapping (in that the parties each sought arbitration) but not identical (in that each party sought arbitration with a different arbitrator). Both suits, however, fairly raised the issue of whether or not Acton’s accountant had agreed to the appointment of Arthur Andersen. That issue had to be decided before either court could order arbitration. To avoid duplication of effort and potentially inconsistent judgments, it stands to reason that one of the two courts should defer to the other.
See Kerotest Mfg. Co. v. C-O-Two Fire Equipment Co.,
Acton claims the district court in this case lacked the power to stay its proceedings to allow the arbitration issues to be decided in Ohio. Acton points to the language of the statute, 9 U.S.C. § 4, providing that “the court shall hear the parties” and, “[i]f the making of the arbitration agreement or the failure, neglect or refusal to perform the same be in issue, . . . shall proceed summarily to trial thereof.” Acton claims that this language, in conjunction with the рermission § 4 grants a party to bring a petition in “any United States dis *383 trict court” that would have jurisdiction over the subject matter of a suit involving the controversy between the parties, makes the petitioner’s choice of forum “conclusive.”
We reject Acton’s argument for it proves too much. On its theory, if many different parties in a complex litigation brought a § 4 proceеding, each in a different district, each district would have to proceed to decide the merits of the action despite the resulting duplication, inconsistency and confusion. No policy underlying the Federal Arbitration Act compels any such result. Indeed, we find no evidence that Congress felt petitioners’ “choice of forum” so important in § 4 cases that it intended а major departure from the ordinary rule allowing one federal court to stay litigation when another federal court is in the process of deciding the same issue. The mandatory language of § 4 refers to a petitioner’s right to substantive relief. It does not address the problem of stays or duplicative litigation.
The cases relied upon by Acton are not to the contrary. In
Aaacon Auto Transport, Inc. v. Ninfo, supra,
the Second Circuit stated that a New York district court “lacked the power” to transfer a § 4 suit to a more convenient federal forum in Wisconsin. The Second Circuit’s decision, however, rested not only on the fact that “the petition [for arbitration] was filed in ... New York,” but also on the fact that the underlying contract “on its face provides for arbitration in New York....”
Id.
at 85. Even if the Second Circuit, in its
per curiam
opinion, meant to do more than suggest the district court had abused its disсretion, the decision’s rationale does not apply here, for the underlying contract does not identify an arbitral forum.
In re Mercury Construction Corp., supra,
involved an appeal from a stay of federal court litigation pending state court determination of the issue of arbitra-bility — an issue that was also before the federal court. Nothing in that opinion suggests that a district court lacks
power
to stay § 4 proceedings in an appropriate case. Moreover, the Fourth Circuit holding rested heavily upon a discussion of the relationship between state and federal courts — a matter not relevant here. Finally, in
Lawn v. Franklin,
Acton goes on to argue that arbitration in Ohio will be less fair than arbitration in Massachusetts because Borden’s economic dominance in the area might affect the arbitrator. Acton also points out that, although Borden filed the Ohio action before Acton filed the Massachusetts action, Acton was the first formally to request any court to order arbitration. These factors, however, are properly considered by the court below when exercising its sound discretion as to which federal district court ought to decide the “arbitration clause” issues. The court’s resulting judgment did not abuse that discretion.
For these reasons, the appeal is dismissed for lack of jurisdiction. Treating the aрpeal as a petition for mandamus, the petition is denied.
Notes
. Referring to disputes of the sort underlying this case, the contract provides:
If such dispute is not resolved by . . . [Arthur Young & Co. and Price Waterhouse & Co.] within a period of ten (10) days, the dispute shall be submitted to another firm of independent auditors jointly selected by them, or, if they cannot agree upon such other firm, then to a firm of independent accountants selected by lot frоm among the six largest national accounting firms excluding Arthur Young & Co. and Price Waterhouse & Co. The determination of the dispute by the firm selected in accordance with the foregoing shall be conclusive and binding on Borden and Acton.
. In reversing our preliminary decision on the matter, we are aware that the “law of the case” doctrine often bars reconsideration of legal issues previоusly decided in the same case.
See White v. Higgins,
. Moreover, it retained the case on its docket and did not pass at all upon “Count II” of Acton’s two count complaint. “Count I,” which the court “denied,” consists of Acton’s motion to compel arbitration; “Count II” asks the court to issue certain declaratory relief “in aid of arbitration.” Had the court’s denial of Acton’s motion to compel been final, there would have been no reason to retain jurisdiction over “Count II,” for a decision permanently refusing to order arbitration makes the relief sought in that сount entirely irrelevant.
. As it turns out, the Ohio court apparently did not decide the factual issue (whether or not Acton’s accountant had agreed to the appointment of Arthur Andersen as arbitrator) underlying Acton’s motion to compel arbitration. Rather, upon satisfying itself that the only issue then before it was whether to stay its own proceedings pending arbitration, and finding both рarties in apparent agreement that a stay was appropriate, the Ohio court simply stayed its own proceedings.
Following the Ohio court’s ruling, Acton moved to vacate the Massachusetts stay. This motion was denied in part upon the ground that pendency of this case on appeal deprived the district court of authority to grant the motion.
. Nor is it aрpealable as the denial of an interlocutory injunction under 28 U.S.C. § 1292(a)(1). See
John Thompson Beacon Windows, Ltd. v. Ferro, Inc.,
. “[Ujpon being satisfied that the making of the agreement for arbitration [and] the failure to comply therewith [are] not in issue,” section 4 of the Federal Arbitration Act directs the court to
order .. . the parties to proceed to arbitration in accordance with the terms of the agreement. The hearing and proceedings, under such agreement, shall be within the district in which the petition for an order directing such arbitration is filed.
9 U.S.C. § 4 (emphasis added).
