Shell Oil Company v. United States, 896 F.3d 1299

Background

In 1942–43 the U.S. Government contracted with four oil companies (Shell, ARCO, Texaco, Union Oil) to buy large quantities of 100-octane aviation gasoline ("avgas"). The contracts allowed only a 6–7% profit margin and anticipated by-products and waste.
Avgas production used concentrated sulfuric acid in alkylation, producing spent alkylation acid and, after partial reuse/treatment, acid sludge; the Oil Companies dumped large quantities of these wastes at the McColl site in California during WWII.
The Ninth Circuit CERCLA litigation (1991) ultimately held the Oil Companies liable for most cleanup but found the Government liable only for benzol-related waste (5.5%); the Oil Companies then sued the United States in the Court of Federal Claims seeking contract-based reimbursement for non-benzol cleanup costs under an Avgas Contract indemnity clause.
This case has been remanded multiple times. The Federal Circuit in Shell II held the Avgas Contracts required reimbursement for CERCLA costs ‘‘by reason of’’ the contracts and remanded damages to the Court of Federal Claims for attribution of how much waste was caused by the contracts.
On remand the Court of Federal Claims (Shell III) barred late-discovery/claims about insurance settlements and denied the Government leave to amend to assert fraud/offset defenses. Later (Shell IV) it awarded the Oil Companies approximately $99.51 million for non-benzol cleanup, finding all remediation costs attributable to the Avgas Contracts and damages proven with reasonable certainty.
The Government appealed, arguing (1) improper allocation between recoverable/nonrecoverable costs, (2) improper admission/use of prior stipulations to calculate damages, and (3) erroneous refusal to allow evidence of insurance recoveries; the Federal Circuit affirmed.

Issues

Issue	Plaintiff's Argument (Oil Cos.)	Defendant's Argument (U.S.)	Held
Whether all remediation costs at McColl were "by reason of" the Avgas Contracts and should be allocated to the Government	All waste (spent acid and acid sludge) stemmed from alkylation required to produce contract avgas; by-products and resulting sludge were reasonably attributable to the contracts	Court should allocate costs: exclude pre-contract dumping, exclude sludge from non-avgas products or non-contract sales, and limit to charges strictly "by reason of" contract production	The Court of Federal Claims did not clearly err; under Shell II remand the but-for/causation inquiry supported attributing all McColl remediation costs to the Avgas Contracts
Admissibility/use of prior stipulations and party statements to establish total remediation costs through 1998	Stipulation and prior party statements are admissible and probative evidence showing total costs; they support damages with reasonable certainty	These documents were made for settlement or earlier litigation and should not have been used to fix damages or were binding admissions that required formal RCFC 56 procedures	The court did not abuse discretion: documents were admissible (opposing party statements), not treated as binding admissions, and provided sufficient evidentiary basis for damages with reasonable certainty
Whether the Government may assert insurance offsets / discovery into insurance settlements and policies after long delay	Insurance recoveries would mitigate damages and are relevant; Government should be allowed discovery/amend to pursue fraud/offset defenses	(As plaintiff below) Insurance information was known long ago; Government waived this affirmative defense by failing to plead it earlier; late amendment and discovery would be unduly prejudicial and delayed	The Government waived insurance-offset defenses by failing to plead them timely; denial of discovery and leave to amend was within the Court of Federal Claims’ discretion (undue delay/prejudice)
Standards of proof for damages allocation among plaintiffs and products	Damages should be further allocated by product and among companies with precision; trial court must disaggregate remediation costs tied to different wastes/products and plaintiffs	Collective proof and breakdowns submitted by Oil Companies suffice; absolute mathematical precision is not required—reasonable certainty is adequate	The court reasonably awarded collective damages and apportioned among plaintiffs based on the evidence; exact product-level disaggregation was not required to meet reasonable-certainty standard

Key Cases Cited

Shell Oil Co. v. United States, 751 F.3d 1282 (Fed. Cir.) (establishing that Avgas Contracts require reimbursement for CERCLA costs "by reason of" the contracts)
Shell Oil Co. v. United States, 672 F.3d 1283 (Fed. Cir.) (prior Federal Circuit opinion in the multi-stage litigation)
Shell Oil Co. v. United States, 130 Fed. Cl. 8 (Fed. Cl.) (post-remand damages opinion awarding ~$99.51M)
Shell Oil Co. v. United States, 123 Fed. Cl. 707 (Fed. Cl.) (order barring late insurance discovery and denying leave to amend)
John R. Sand & Gravel Co. v. United States, 457 F.3d 1345 (Fed. Cir.) (standards of review for Court of Federal Claims’ factual and legal findings)
Ind. Mich. Power Co. v. United States, 422 F.3d 1369 (Fed. Cir.) (but-for causation and clear-error standard explanation)
Precision Pine & Timber, Inc. v. United States, 596 F.3d 817 (Fed. Cir.) (damages proof: reasonable certainty standard)
Swiff-Train Co. v. United States, 793 F.3d 1355 (Fed. Cir.) (causation: need not isolate principal cause to satisfy "by reason of")
Burrage v. United States, 571 U.S. 204 (U.S.) (but-for causation discussion cited for causation standard)
Foman v. Davis, 371 U.S. 178 (U.S.) (standards for leave to amend pleadings)