Valero LyondellBasell Refinery Deal: About 30% of Capacity Lost in Three US Closures Would Return, All on the Gulf Coast

By Stock Titan Editorial Team Published October 30, 2026, 07:03 AM EDT

How much US refining would the Valero LyondellBasell Houston restart bring back?

The US Energy Information Administration (EIA), the government’s energy statistics agency, reports all three. LyondellBasell ended refining at its Houston plant in early 2025, and Phillips 66 closed its Los Angeles refinery in October 2025. The EIA adds that Valero’s Benicia refinery in California has also stopped refining.

Together the three took out 547,476 barrels a day of refining capacity, and Valero’s planned restart would bring back about 30% of that. The EIA’s count of all US capacity fell by less during 2025, just over 250,000 barrels a day. Small additions at other refineries partly offset the Houston and Los Angeles closures, and Benicia stopped only in 2026. Valero does not say whether its figure uses the same measure as the EIA’s, so this share, like the other comparisons with EIA figures here, is approximate.

Show the data

Category	Change
LyondellBasell Houston	-263,776
Phillips 66 Los Angeles	-138,700
Valero Benicia	-145,000
Valero Houston restart (planned)	+165,000

How does the Houston restart compare with Valero’s Benicia refinery closure?

Valero approved the plan to idle Benicia in March 2025 and finished in April 2026, its quarterly report says. It now serves Northern California customers “through imports or other alternative supply arrangements.” At 165,000 barrels a day, the Houston restart would be a little larger than Benicia’s 145,000 on the companies’ and the EIA’s figures, though on the other side of the country.

That distance matters for the fuel people buy. The EIA calls the Gulf Coast a region where more fuel is produced than consumed, and says little pipeline capacity runs from its refining hubs to the West Coast. In our reading, a closure out west therefore weighs more on supply there. Some of the Gulf Coast’s extra fuel already travels, though. The EIA says the East and West Coasts rely on imports to top up their own refineries, and that shipments from the Gulf Coast have partly made up for lower imports since March.

Prices on the two coasts were far apart before this deal. On the Monday before Labor Day, regular gasoline averaged $5.21 a gallon on the West Coast and $3.62 on the Gulf Coast, the EIA reported. The agency says regional prices reflect local supply and demand, state fuel rules and state taxes, so supply explains only part of that gap.

What is Valero buying from LyondellBasell?

A Valero subsidiary is buying the LyondellBasell unit that owns the site, according to Valero’s filing with the Securities and Exchange Commission. Valero expects to close by the end of 2026, once the federal antitrust waiting period, the time regulators get to check a deal for harm to competition, runs out.

LyondellBasell says Valero is taking on the site’s environmental liabilities, meaning the cost of cleaning up past pollution, along with pension costs and employee obligations. It adds that the agreement keeps the site’s current workforce employed.

Much of what Valero gets is plumbing. Its transaction presentation lists 13.5 million barrels of storage, ship docks, rail loading and truck racks, and a pipeline between Valero’s Houston and Texas City refineries already crosses the property. Lane Riggs, Valero’s chief executive, said in the announcement that the deal expands its Gulf Coast footprint “at a fraction of replacement value,” meaning far below what building the same thing new would cost.

Why did LyondellBasell close its Houston refinery?

The decision came in April 2022, when the company’s interim chief executive, Ken Lane, called leaving refining “the best strategic and financial path forward for the Company” and said it advanced its goals to cut carbon emissions. LyondellBasell later pushed the exit to early 2025 and said the 700-acre site would become part of a Houston hub for its recycling and low carbon business.

LyondellBasell’s refining business had a weak last full year. LyondellBasell’s annual report for 2025 shows its discontinued operations, businesses it no longer runs and mainly refining, with an operating loss of $100 million in 2024. That means the business lost money before interest and taxes. That loss came two years after the decision to leave, so it was not the reason, and the company ceased operations in February 2025.

Show the data

Date	Event
Apr 2022	LyondellBasell decides to stop running the Houston refinery, then delays the exit to early 2025.
Feb 2025	LyondellBasell stops refining in Houston, according to its annual report for 2025.
Mar 2025	Valero approves its plan to idle the Benicia refinery.
Oct 2025	Phillips 66 closes its Los Angeles refinery, according to EIA.
Feb 28, 2026	War in the Middle East begins, as dated by the EIA.
Apr 2026	Valero completes the full idling of its Benicia refinery.
Oct 29, 2026	Valero signs the deal to buy the former LyondellBasell Houston refinery.
End of 2026	Closing expected by this time, subject to the required regulatory waiting period.
End of 2027	Restart of 165,000 barrels a day of crude processing capacity planned by this time.

Why restart a closed Houston refinery now?

About a year after the doors closed, the market turned. The EIA dates the start of the war in the Middle East to late February 2026. Valero’s quarterly report says outages at refineries and export sites in the Middle East and Russia keep global fuel inventories low.

Valero’s refining margin is the gap between what its fuels sell for and what its crude and other raw materials cost, before its own operating costs. It was $39.24 a barrel in the third quarter of 2026, Valero reported, against $13.14 a year earlier.

That lifted Valero’s refining business to $8.78 billion of operating income, its profit from running the plants before interest and taxes, in the quarter. The purchase price equals about 3.4 days of that, or about 18 days at the pace of a year earlier, before the war. Neither comparison counts the restart, whose cost Valero has not disclosed, or the cleanup and pension bills it takes on.

Plants that still run are near their limit. Chevron reported on October 30 a record 1.09 million barrels a day at its US refineries, at nearly 98% of their capacity. Our reading is that this helps explain why a closed refinery is worth reviving now, when the plants already running have little room left to add fuel.

Valero has also published its own projection. Its presentation shows an after-tax return above 25% a year, measured over the money the project is expected to bring in and pay out. Valero bases it on what it calls forward mid-cycle pricing, its assumed future prices for the middle of the industry’s ups and downs, which it does not publish. It also assumes few extra gains from linking the site to its other plants, so the figure is the company’s own estimate.

How much crude will the former LyondellBasell Houston refinery process?

Valero plans to start with light sweet crude, oil that is thin and low in sulfur and so easier to refine. That is about 63% of the 263,776 barrels a day the EIA listed for the plant. The release calls it the initial restart and says the deal also gives Valero the opportunity to invest later in more advanced units that turn thicker, high sulfur oil into fuel.

Part of the output would feed Valero’s other plants. The presentation says the site would make more feed for Valero’s FCC and hydrocracker units, the equipment that cracks heavy oil into gasoline and diesel. Valero would then need less of that feed from other companies, and spare equipment at the site would clean up partly refined oil from its other Gulf Coast refineries.

So the restart adds capacity in a region that already makes more fuel than it uses. The two California plants, meanwhile, stay shut.

Frequently asked questions

The information provided in this article is for educational and informational purposes only. It does not constitute financial advice, investment recommendation, or an endorsement of any particular investment strategy. Past performance does not guarantee future results. Investors should conduct their own research and consult with a qualified financial advisor before making investment decisions.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now