Conex Oil & Gas Holdings v PSTV Energy — High Court refused to stay English guarantee proceedings in favor of Liberian litigation

Case
Conex Oil & Gas Holdings Ltd v PSTV Energy FZCO
Court
High Court of Justice, Commercial Court (United Kingdom)
Judge
Louise Hutton (Lord Chief Justice of England and Wales, The Rt Hon. Lord Burnett of Maldon, 2023)
Date Decided
10 September 2026
Citation
[2026] EWHC 2325 (Comm)
Topics
Jurisdiction, Forum non conveniens, Guarantees, Parallel proceedings

Background

PSTV supplied marine fuel to Conex Petroleum Services Inc. under an English-law agreement requiring London arbitration. Conex Oil & Gas Holdings Ltd, CPS’s parent, later guaranteed CPS’s obligations under an English-law deed containing a non-exclusive English jurisdiction clause. After a dispute arose over the underlying account, PSTV demanded more than US$24 million under the guarantee and brought an English claim for approximately US$23 million after crediting a payment by CPS.

After receiving PSTV’s letter before action, COGH commenced a petition for proper accounting in Liberia. PSTV challenged the Liberian court’s jurisdiction but lost and then ceased participating there. PSTV separately commenced the English proceedings against COGH and a London arbitration against CPS. COGH sought a stay of the English claim under CPR 11 or, alternatively, on case-management grounds, arguing that Liberia was the more appropriate forum and that judgment there might be imminent. The court permitted COGH to rely on expert evidence concerning Liberian law before deciding the stay application.

The Court’s Holding

The Commercial Court dismissed the stay application. Because COGH had agreed to the non-exclusive English jurisdiction clause, it needed a strong reason to displace the parties’ contractual choice. The location of witnesses, documents, transactions, and assets, the availability and convenience of Liberia, and potential enforcement difficulties were foreseeable when the guarantee was made and therefore did not provide the required justification. Parallel litigation was likewise a foreseeable consequence of a non-exclusive jurisdiction clause and did not itself supply a strong reason for a stay.

The court also held that PSTV had not submitted to Liberian jurisdiction in the sense relevant under English conflict-of-laws rules. PSTV had addressed the merits expressly without prejudice to its jurisdictional objection and stopped participating after that objection failed; the Liberian court’s characterization of PSTV’s appearance under Liberian law was not determinative in England. A Liberian judgment therefore would not be entitled to recognition or enforcement in England on the asserted submission ground.

A discretionary case-management stay was also refused. Such relief pending foreign proceedings requires rare and compelling circumstances and a powerful reason. Those conditions were absent because COGH began the Liberian case while aware that PSTV intended promptly to sue in England, PSTV had ceased participating in Liberia, and any resulting Liberian judgment would not be recognized or enforced in England.

Key Takeaways

  • A party seeking to avoid a contractually designated English forum under a non-exclusive jurisdiction clause must establish a strong reason; an ordinary forum-convenience balancing exercise is insufficient.
  • Foreseeable matters—including parallel proceedings, foreign witnesses and documents, and enforcement difficulties—ordinarily cannot release a party from its jurisdiction agreement.
  • Whether participation in foreign litigation amounts to submission for English recognition purposes is governed by English law; maintaining a jurisdictional objection while pleading defensively on the merits need not constitute submission.

Why It Matters

The decision reinforces the substantial weight English courts give even to non-exclusive jurisdiction clauses. A party cannot ordinarily defeat the agreed English forum by commencing pre-emptive foreign proceedings and then relying on the cost, duplication, or risk of inconsistent outcomes that those proceedings create.

It also distinguishes a foreign court’s assessment of its own jurisdiction from the English-law inquiry governing recognition of a foreign judgment. For cross-border litigants, protective participation in a foreign case may not amount to submission in England where the jurisdictional challenge remains clearly preserved.

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