Shares of oil and gas refining and marketing companies are trading lower after reports suggesting the Trump administration is considering implementation of a 90-day ban on diesel exports, which would lower domestic prices and refining margins.

Dozens Of U.S. Oil Refining And Business Groups Urge Trump To Reject Any Effort To Impose Ban On Diesel Exports

- Reuters Citing Letter

Shares of oil and gas refining and marketing companies are trading higher despite a retracement in oil prices amid investor focus on shortages of refined petroleum products stemming from persistent outages in Russian and Middle Eastern refining capacity.

8-K filing — Calumet, Inc. /DE (CLMT)

Filed: 2026-09-15 AccNo: 0001193125-26-390825 Size: 298 KB Item 1.01: Entry into a Material Definitive Agreement Item 2.03: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant Item 9.01: Financial Statements and Exhibits

Shares of oil and gas refining and marketing companies are trading higher after reports suggesting that multiple U.S. industry associations sent a letter to President Trump warning of serious market risks from a proposed 90-ban on diesel exports.

Will Par Pacific's Retail Expansion Boost Earnings Stability Ahead?

Par Pacific Holdings is strengthening its retail segment through expanded merchandise and food service offerings to build a more stable earnings base alongside its cyclical refining business. Despite a 0.8% decline in same-store fuel volumes in Q2 2026, in-store sales rose 1% and retail adjusted EBITDA improved to $17 million. The company's retail segment generated $40.7 million in adjusted gross margin, demonstrating the value of diversification. Similar strategies are being pursued by competitors HF Sinclair and Phillips 66.

Trump's Diesel Ban Comes With A Bigger Bill at The Pump

A diesel export ban could force U.S. refiners to lift gasoline and jet fuel prices, with diesel already at a record $6.53 a gallon.