Background and Commercial Context

Marathon Oil Company and Mercuria Energy America, LLC entered into a contract for the sale and purchase of natural gas based on a North American Energy Standards Board (NAESB) form. When a winter storm disrupted Marathon's ability to deliver the contracted natural gas volume for the month, Marathon declared force majeure. Mercuria brought a breach of contract action disputing Marathon's force majeure declaration, arguing that Marathon should have taken additional steps to fulfill its delivery obligations despite the storm's impact.

The Central Dispute: Spot Market Purchases and Buyback Obligations

Mercuria advanced two principal arguments challenging Marathon's force majeure declaration. First, Mercuria contended that Marathon should have purchased gas on the spot market to meet its delivery obligations despite the storm's impact on Marathon's own production. Second, Mercuria argued that Marathon should have bought back its delivery obligation—a financial transaction in which Marathon would pay to be relieved of its duty to perform. The dispute turned on the interpretation of the parties' modified NAESB form contract, particularly the force majeure clause's scope and the meaning of "reasonable efforts" required to avoid or mitigate force majeure impacts. The Business Court granted in part and denied in part both parties' motions for partial summary judgment, resolving key contractual interpretation issues.

The Court's Analysis: Contract Language Controls

Judge Melissa Andrews began with foundational contract interpretation principles, noting that courts "hold parties to what they said in a contract and interpret what they said to mean what an ordinary person reading the contract would think it means." The court emphasized the importance of uniform construction of industry form contracts, stating:

It is incumbent upon courts to protect the continuity and predictability provided by uniform oil-and-gas industry form contracts by construing them in a uniform and predictable way.

On the spot market purchase issue, the court held that the phrase "seller's gas supply" in the force majeure exclusions referred only to "gas oil company had available to satisfy its delivery obligations under contract and did not include gas available for purchase on spot market." The court determined that Marathon was not required to purchase spot-market gas to fulfill its original delivery obligation and did not need to prove that the winter storm prevented it from doing so to satisfy the force majeure clause provision.

Critically, the court found that the parties' addition of specific language to the NAESB form—providing that the party claiming force majeure had no obligation to seek alternative gas supplies to satisfy contractual obligations—relieved Marathon of any duty to purchase spot-market gas. The court determined that spot-market gas constituted an "alternative gas supply" under this provision, and the contractual language excused Marathon from seeking such alternatives even as part of any "reasonable efforts" obligation under the force majeure provisions to avoid impact of force majeure and resume performance.

Buyback Obligations Rejected

The court also rejected Mercuria's argument regarding buyback obligations. The court held that Marathon was not obligated to buy back its delivery obligations after declaring force majeure as a reasonable effort required under the force majeure provisions to avoid impact of force majeure and resume performance. This holding reinforced the court's interpretation that the parties' contractual modifications defining the scope of obligations during force majeure events controlled over any general expectations about mitigation efforts.

Implications for Oil and Gas Contracts

The decision provides important guidance on the enforceability of contractual modifications to standard industry forms. By holding that express contractual language limiting obligations to seek alternative supplies controlled the analysis, the court affirmed that sophisticated commercial parties can define and limit the scope of "reasonable efforts" required during force majeure events. The ruling emphasizes that courts will enforce negotiated modifications to form contracts even when those modifications limit obligations that might otherwise seem commercially reasonable, protecting the predictability and uniformity of industry standard contracts.