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MPC
NYSE Energy & Transportation

Marathon's Galveston Bay Refinery Reports Compressor Leak, Second Incident in Two Weeks

Tom Rudovsky · Reported by Reuters
More coverage: Oil & Gas Stocks · Energy
Sentiment info
Negative
Importance info
7
Price
$298.79
Mkt Cap
$83.908B
52W Low
$158
52W High
$326.92
52W Position info
89% above low
Off High info
8.6% below high
Rel. Volume info
0.4× avg
Market data snapshot near publication time

MPC sits 89% above its 52-week low of $158 on light trading volume (0.4× avg).

Summary

A leak was observed on a compressor unit at Marathon's 631,000 bpd Galveston Bay refinery, per a TCEQ filing. Repair plans are underway to isolate the equipment. This follows a separate leak from a tank mixer seal at the same facility on July 23, raising concerns about operational reliability at a key asset. The refinery's size makes any unplanned downtime potentially material to regional fuel supply and earnings. No production impact has been disclosed yet.

At the time of this announcement, MPC was trading at $298.79 on NYSE in the Energy & Transportation sector, with a market capitalization of approximately $83.9B. The 52-week trading range was $158.00 to $326.92. 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
Aug 04, 2026, 11:59 AM EDT
Source: Reuters
Importance Score:
7
Price at Filing: $309.87
Real-time Price: $298.77 info
Change: -$11.10 (-4%) info
Market Cap: $83.902B info
MPC
Aug 04, 2026, 6:50 AM EDT
Source: Reuters
Importance Score:
9
Price at Filing: $314.00
Real-time Price: $298.77 info
Change: -$15.23 (-5%) info
Market Cap: $83.902B info
MPC
Aug 04, 2026, 6:49 AM EDT
Filing Type: 8-K
Importance Score:
8
Price at Filing: $314.00
Real-time Price: $298.77 info
Change: -$15.23 (-5%) info
Market Cap: $83.902B info
MPC
Aug 02, 2026, 8:57 PM EDT
Source: Reuters
Importance Score:
7
Price at Filing: $319.85
Real-time Price: $298.77 info
Change: -$21.08 (-7%) info
Market Cap: $83.902B info
MPC
Jul 23, 2026, 6:13 AM EDT
Source: Reuters
Importance Score:
7
Price at Filing: $325.00
Real-time Price: $298.77 info
Change: -$26.23 (-8%) info
Market Cap: $83.902B info