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Western Refinery Services, historically known and operating primarily as Western Refining (formerly NYSE: WNR), was an independent crude oil refiner and marketer of petroleum products. The company's operations were concentrated in the Southwestern United States, including refineries in Texas and New Mexico, and also expanded to the Upper Midwest and Mid-Atlantic through acquisitions. Western Refining was acquired by Tesoro Corporation in 2017. Tesoro subsequently rebranded as Andeavor, which was then acquired by Marathon Petroleum Corporation (MPC) in 2018. Therefore, the assets and operations of what was Western Refinery Services are now part of Marathon Petroleum.
The El Paso headquarters housed executive leadership, corporate finance, legal, human resources, and strategic planning for the independent refining and marketing operations.
The headquarters was likely a modern office facility typical for a mid-sized publicly traded energy company, focused on functionality and accessibility for corporate staff. Specific architectural details are not widely publicized post-acquisition.
As an independent refiner, the work culture at Western Refining likely emphasized operational efficiency, safety, market responsiveness, and financial discipline. Employees would have experienced a dynamic environment focused on the volatile energy markets. Post-acquisition, the culture would have merged with that of Tesoro/Andeavor and subsequently Marathon Petroleum.
The El Paso headquarters was significant as the nerve center for a key regional refining player in the U.S., overseeing multiple refineries and a network of retail fuel stations and convenience stores, particularly in the Southwest.
Prior to its acquisition, Western Refining's operations were primarily focused within the United States. Its core activities included oil refining in the Southwest (Texas, New Mexico), the Upper Midwest (Minnesota), and the Mid-Atlantic (Virginia), along with associated logistics and marketing operations. While it sourced crude oil internationally and sold some products with cross-border implications (e.g., to northern Mexico), it did not maintain a significant physical global presence with international offices in the way a multinational corporation might.
123 W. Mills Avenue, Suite 200
El Paso
Texas
USA
Address: 6501 Trowbridge Dr, El Paso, TX 79905 (Approximate for El Paso Refinery)
Supplied refined petroleum products to markets in West Texas, New Mexico, Arizona, and northern Mexico.
Address: I-40 & Route 666, Jamestown, NM 87347 (Approximate for Gallup Refinery)
Served the Four Corners region (New Mexico, Arizona, Colorado, Utah) with essential fuels.
Address: 11600 Point Douglas Rd S, St Paul Park, MN 55071 (Acquired via Northern Tier Energy)
Supplied gasoline, diesel, and asphalt to the Upper Midwest market.
Address: 111 State Rte 630, Yorktown, VA 23690 (Acquired refinery)
Supplied petroleum products to the Mid-Atlantic region.
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As of April 2025, Western Refinery Services' leadership includes:
Western Refinery Services has been backed by several prominent investors over the years, including:
The most significant executive changes for Western Refining occurred in the context of its acquisition by Tesoro Corporation, finalized in June 2017. This event led to the integration of its leadership team into Tesoro (which became Andeavor, now part of Marathon Petroleum) or their departure. There is limited public information on specific hires/exits in the 12 months immediately preceding the acquisition announcement that were not related to the M&A process itself.
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Historically, Western Refining (wnr.com) likely used common corporate email formats. After its acquisition by Tesoro and subsequently Marathon Petroleum, any official communication would use the acquiring company's email system. Predicting historical formats involves common patterns.
Likely `[first_initial][last]@wnr.com` or `[first].[last]@wnr.com`
Format
Example (hypothetical): `jstevens@wnr.com` for Jeff Stevens.
Example
0 (The wnr.com domain is no longer actively used for email by the original entity; it likely redirects or is controlled by Marathon Petroleum).%
Success rate
Reuters • June 1, 2017
Tesoro Corp said on Thursday it completed its $6.4 billion acquisition of Western Refining Inc, creating a company with a significant presence in the U.S. refining market....more
Western Refining Press Release / Business Wire • November 17, 2016
Tesoro Corporation (NYSE:TSO) and Western Refining, Inc. (NYSE:WNR) today announced that their boards of directors have unanimously approved a definitive agreement under which Tesoro will acquire Western, creating a premier, highly integrated and geographically diversified refining, marketing and logistics company....more
Western Refining Press Release / GlobeNewswire • August 3, 2016
Western Refining, Inc. (NYSE: WNR) today reported second quarter 2016 net income attributable to Western of $30.0 million, or $0.27 per diluted share. This provides a snapshot of its financial performance before the acquisition was finalized....more
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