Marathon Petroleum Letter 2-25-15 JC 2

Investors and the Union of Concerned Scientists (UCS) are calling on Marathon Petroleum to improve its public disclosures regarding the physical risks of climate change. They argue that the company's SEC Form 10-K filings fail to address the vulnerability of coastal refineries to sea level rise and storm surges, despite evidence of past disruptions and scientific projections for the Gulf of Mexico.

• Marathon Petroleum has failed to disclose physical risks from climate change in its SEC Form 10-K filing, despite the vulnerability of its coastal refineries to enhanced storm surge and sea level rise, particularly at the Texas City, Texas refinery.
• The company's coastal facilities, including the Galveston Bay and Texas City refineries in Texas and the Garyville refinery in Louisiana, face material financial risks from storm surges and sea level rise, which could lead to diminished refining utilization, facility closure, or supply chain disruptions.
• The material impact of severe weather was demonstrated in 2012 when Hurricane Isaac reduced operating capacity at the Garyville, Louisiana refinery, necessitating a loan of one million barrels of crude oil from federal emergency reserves.
• Scientific projections indicate that the Gulf of Mexico is likely to experience one to three feet of sea level rise over the next 100 years, with some areas potentially seeing up to 1.7 feet within 25 years; Galveston, Texas has already seen over one foot of rise in the last 50 years.

APA

Union of Concerned Scientists (2015). Marathon Petroleum Letter 2-25-15 JC 2. https://www.ucsusa.org/sites/default/files/attach/2015/02/marathon-petroleum-letter-investors.pdf

Chicago

Union of Concerned Scientists. Marathon Petroleum Letter 2-25-15 JC 2. 2015. https://www.ucsusa.org/sites/default/files/attach/2015/02/marathon-petroleum-letter-investors.pdf.

Wikipedia

{{cite press release |author=Union of Concerned Scientists |title=Marathon Petroleum Letter 2-25-15 JC 2 |date=25 February 2015 |url=https://www.ucsusa.org/sites/default/files/attach/2015/02/marathon-petroleum-letter-investors.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@misc{unionofconcernedscientists2015marathon, author = {{Union of Concerned Scientists}}, title = {{Marathon Petroleum Letter 2-25-15 JC 2}}, publisher = {Union of Concerned Scientists}, year = {2015}, month = feb, url = {https://www.ucsusa.org/sites/default/files/attach/2015/02/marathon-petroleum-letter-investors.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }