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MPC
NYSE Energy & Transportation

Power Loss Triggers Equipment Upset at Marathon's Galveston Bay Refinery, Causing Flaring

Tom Rudovsky · Reported by Reuters
More coverage: Oil & Gas Stocks · Energy
Sentiment info
Negative
Importance info
7
Price
$223.03
Mkt Cap
$65.682B
52W Low
$121.69
52W High
$255.77
52W Position info
83% above low
Off High info
13% below high
Rel. Volume info
0.6× avg
Market data snapshot near publication time

MPC sits 83% above its 52-week low of $121.69.

Summary

Marathon Petroleum reported an equipment upset at its 631,000-barrel-per-day Galveston Bay refinery in Texas. The incident, caused by a sudden loss of electrical supply to multiple pumps in its fluid catalytic cracking unit, led to an unplanned unit upset and triggered flaring to stabilize operations, as detailed in a filing with the Texas Commission on Environmental Quality. This operational setback at a key facility could temporarily impact refining output and potentially increase costs, contrasting with recent positive reports of wider Gulf Coast refining margins for the company. Traders will closely monitor the duration of the disruption, the extent of any production losses, and potential regulatory implications from the TCEQ filing.

At the time of this announcement, MPC was trading at $223.03 on NYSE in the Energy & Transportation sector, with a market capitalization of approximately $65.7B. The 52-week trading range was $121.69 to $255.77. This news item was assessed with negative market sentiment and an importance score of 7 out of 10. Source: Reuters.


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MPC - Latest Insights

MPC
Jul 23, 2026, 6:13 AM EDT
Source: Reuters
Importance Score:
7
Price at Filing: $325.00
Real-time Price: $310.62 info
Change: -$14.38 (-4%) info
Market Cap: $89.347B info
MPC
Jul 10, 2026, 4:35 PM EDT
Source: Reuters
Importance Score:
8
Price at Filing: $283.74
Real-time Price: $310.62 info
Change: +$26.88 (+9%) info
Market Cap: $89.347B info
MPC
Jul 06, 2026, 4:38 PM EDT
Source: Reuters
Importance Score:
8
Price at Filing: $268.99
Real-time Price: $310.62 info
Change: +$41.63 (+15%) info
Market Cap: $89.347B info
MPC
Jul 06, 2026, 1:22 PM EDT
Source: Reuters
Importance Score:
7
Price at Filing: $269.74
Real-time Price: $310.62 info
Change: +$40.88 (+15%) info
Market Cap: $89.347B info
MPC
Jun 23, 2026, 5:05 PM EDT
Source: dpa-AFX
Importance Score:
7
Price at Filing: $244.32
Real-time Price: $310.62 info
Change: +$66.30 (+27%) info
Market Cap: $89.347B info