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Western Midstream Partners
Western Midstream Partners, LP, was formed in 2007 as Western Gas Partners, LP by Anadarko Petroleum Corporation and began trading on the NYSE in 2008.
Western Midstream Partners
Western Midstream Partners, LP, was formed in 2007 as Western Gas Partners, LP by Anadarko Petroleum Corporation and began trading on the NYSE in 2008. After Occidental acquired Anadarko in 2019, WES became a standalone midstream organization, with its general partner a wholly owned subsidiary of Occidental. The firm's public units trade under the ticker WES. Strategy focuses on gathering, compressing, treating, processing, and transporting natural gas; stabilizing and transporting condensate, NGLs, and crude oil; and gathering, recycling, treating, and disposing of produced water. Core basins include the Delaware Basin (West Texas/New Mexico), DJ Basin (Colorado), and Powder River Basin (Wyoming), with additional assets in South Texas, Utah, and Southwest Wyoming. The firm also buys and sells natural gas, NGLs, and condensate under certain processing contracts. Major recent expansion: in 2025 it acquired Aris Water Solutions, started the 300 MMcf/d North Loving gas processing train, and announced a pathfinder pipeline expansion. In 2024 it sold five non-core assets for $790 million. As of February 2026, the firm reported approximately 150 million limited partner units publicly traded and 243 million units held by Occidental, giving Occidental roughly 62% economic ownership. Rated by S&P, Fitch, and Moody's (all stable outlook). The leadership team includes CEO Oscar Brown, CFO Kristen Shults, and VP Jon Greenberg. WES employs more than 1,700 people from its headquarters in The Woodlands, Texas. Its sustainability program organizes around three pillars: supporting sustainable environments, focusing on people, and operating responsibly. Western Midstream's structural differentiator is its master limited partnership (MLP) form, which allows pass-through taxation, coupled with its relationship to Occidental as sponsor and 62% owner. It operates with no directors or officers; the general partner, a wholly owned Oxy subsidiary, manages operations. This arrangement gives it a stable sponsor with deep upstream assets while maintaining standalone management control.
General information
Firm type
Asset Manager
Year founded
2007
AUM
Undisclosed
Location
Region
North America
Country
United States
City
The Woodlands
Corporate office
The Woodlands, Texas, United States
Principals
Oscar Brown
CEO
Kristen Shults
Senior Vice President and CFO
Jon Greenberg
VP
Sector focus
Frequently asked questions
Who runs investment decisions at Western Midstream Partners?
CEO Oscar Brown leads the firm, with CFO Kristen Shults overseeing financial strategy and investor relations. The general partner, a wholly owned subsidiary of Occidental, manages operations and activities, with its board of directors overseeing strategy. VP Jon Greenberg also participates in investor communications.
Is Western Midstream structured as a family office or a publicly traded entity?
Western Midstream is a publicly traded master limited partnership (MLP) on the NYSE under ticker WES. It is not a family office. It was formed by Anadarko Petroleum and, after Occidental's acquisition of Anadarko, Occidental holds approximately 62% of outstanding units.
What investment stages and asset classes does Western Midstream target?
The firm focuses on midstream infrastructure: gathering, processing, treating, and transporting natural gas, NGLs, crude oil, and produced water. It operates in the Delaware, DJ, and Powder River basins, with additional assets in South Texas, Utah, and Southwest Wyoming. It also buys and sells natural gas, NGLs, and condensate under certain contracts.
How does Western Midstream source its capital projects and acquisitions?
Capital is deployed through organic projects (e.g., the 300 MMcf/d North Loving gas processing train in 2025) and acquisitions. In 2025 it acquired Aris Water Solutions and announced a pathfinder pipeline expansion; in 2024 it sold five non-core assets for $790 million. The firm uses debt and equity financing, including a $600 million notes offering in 2025 (per firm website).
What is Western Midstream's relationship with Occidental Petroleum?
Occidental is the sponsor of WES after acquiring Anadarko in 2019. Occidental holds about 62% of common units (as of February 2026). The general partner of WES is a wholly owned subsidiary of Occidental, but WES operates as a standalone business with its own management team and employees.
Which sectors does Western Midstream explicitly avoid?
The firm does not publicly disclose negative screens. Its disclosed focus is exclusively on midstream energy infrastructure and water solutions; it does not invest in upstream production, renewables generation, or unrelated sectors.
Does Western Midstream maintain a philanthropic structure?
The firm's sustainability program includes a social investment pillar, but it does not disclose a separate foundation or charitable entity. Philanthropic activities include community donations, such as the Permian Basin BBQ Cook-Off donation to WTX Food Bank in 2025.
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