Private company
Diamond Shamrock
Logo: http://www.route40.net/images/others/diamondshamrock.jpg, Non-free logo, via Wikipedia3
US oil refinery and gas station company
Diamond Shamrock (formerly known as the Ultramar Diamond Shamrock Corporation) is an American brand of gasoline stations under the ownership of the Valero Energy Corporation and is currently headquartered in San Antonio, Texas. The former company was established on December 1, 1967 when Cleveland-based Diamond Alkali merged with Shamrock Oil of Amarillo, Texas, creating the entity known as the Diamond Shamrock Corporation.2 Wikipedia text CC BY-SA 4.0
Last updated Oct 21, 2026.
Overview
- HeadquartersSan Antonio1
- Websitewww.valero.com
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Diamond Shamrock (formerly known as the Ultramar Diamond Shamrock Corporation) is an American brand of gasoline stations under the ownership of the Valero Energy Corporation and is currently headquartered in San Antonio, Texas. The former company was established on December 1, 1967 when Cleveland-based Diamond Alkali merged with Shamrock Oil of Amarillo, Texas, creating the entity known as the Diamond Shamrock Corporation.2
Timeline
- 1967Founded Founded1
Links
- Websitewww.valero.com1
- WikipediaDiamond Shamrock
- WikidataQ16973722
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1WikidataDiamond Shamrock on Wikidata
- 2WikipediaDiamond Shamrock on Wikipedia
- 3