NEW YORK, Jan 5, 2026, 05:42 ET — Premarket
- Marathon Petroleum shares rose about 5.8% in premarket trading, tracking a broader jump in U.S. refining stocks tied to Venezuela headlines.
- Traders are weighing whether easier access to Venezuelan heavy crude could benefit Gulf Coast refiners’ feedstock slate.
- Focus turns to U.S. policy signals on Venezuelan crude exports, plus key U.S. data this week and MPC’s next earnings window.
Marathon Petroleum Corporation shares jumped 5.75% to $174.63 before the opening bell on Monday, extending energy-sector momentum sparked by Washington’s latest moves in Venezuela.
The rally comes as investors bet the U.S. crackdown on Venezuela’s leadership could loosen restrictions around Venezuelan crude and shift more barrels toward American buyers. That matters for refiners because crude type and location can move costs — and margins — quickly when supplies are tight or discounted.
Venezuelan crude is typically “heavy sour” — oil with higher sulfur content — and U.S. Gulf Coast plants were built decades ago to run heavier grades. Ahmad Assiri, research strategist at Pepperstone, said that crude “aligns well with the configuration of U.S. Gulf Coast refineries.” Reuters
The move in MPC mirrored gains across the group. Reuters reported Chevron was up 7.3% in premarket trading, while refiners including Phillips 66, Valero Energy and PBF Energy were also higher.
Oil prices, however, slipped even as the geopolitical stakes rose. Brent crude fell 0.4% to $60.54 a barrel and U.S. WTI dropped 0.5% to $57.04, with traders pointing to ample supply and OPEC+ holding output steady.
A Reuters Breakingviews column said the bigger near-term story for refiners could be trade flows rather than new production. If more Venezuelan exports are redirected toward the United States, U.S. refiners could see an “immediate boost,” even if a sustained recovery in Venezuelan output takes longer. Reuters
For Marathon, the key watch is refining margin — the spread between what it pays for crude and what it sells fuels for. Traders often track that through crack spreads, a shorthand for the gap between prices of products like gasoline and diesel and the cost of crude.
The stock’s premarket jump pushed it closer to the upper end of its recent range. MPC has traded between $115.10 and $202.30 over the past 52 weeks, based on market data, and early trading showed a narrow premarket band around $174.50–$174.64.
There is a catch: analysts have warned that any meaningful recovery in Venezuelan oil production would take time given political uncertainty, infrastructure decay and years of underinvestment. Venezuelan heavy sour crude can also carry lower margins than some competing grades, which could cap the benefit if product prices do not keep pace.
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