Caltex began in 1936 as the California Texas Oil Company, a joint venture between the Texas Company (later named Texaco) and Standard Oil of California (later named Chevron Corp.) to market oil from newly gained concessions in Bahrain. It was renamed Caltex Petroleum Corp. in 1968. The two parent companies merged in 2001 to form ChevronTexaco (renamed Chevron in 2005) and Caltex remains one of its major international brand names.
Caltex timeline: 
- 1936 Chevron and Texaco form the Caltex Group to operate in Africa, the Middle East, Asia, Australia and New Zealand.
- 1940s Caltex aids allied war effort.
- 1947 Tankers purchased from surplus U.S wartime fleet; Texaco's European subsidiaries purchased.
- 1948 Caltex enters partnership with Japan's Nippon Oil Company
- 1949-66 Caltex builds or has interest in new refineries in 20 countries.
- 1967 European interests transferred to Chevron and Texaco; Caltex refocuses on Africa and Asia.
- 1968 Caltex enters Korean market.
- 1981-83 Acquisitions strengthen position in Hong Kong, Thailand, the Philippines and Australia.
- 1982 Caltex corporate headquarters move to Dallas, Texas.
- 1985 Representative office opened in Beijing, China.
- 1990s Caltex moves into promising markets such as India, Sri Lanka, Vietnam, Cambodia, Indonesia and Lebanon.
- 1996 Caltex introduces new corporate and retail identity.
- 1998 Caltex relocates corporate center to Singapore.
- 1998 Caltex reorganizes along functional business lines.
- 1999 Caltex changes name to Caltex Corporation.
- 2014 Caltex shut down Kurnell refinery and converted the site to an import facility.
Caltex Petroleum Australia Pty. Ltd. (ASX: CTX) until March 2015, Caltex was owned 50 percent by Chevron, and 50 percent by Australian shareholders. In March 2015, Chevron sold down its 50% holding to Australian shareholders.
On 27 May 2009 Caltex announced a proposal to acquire 302 Mobil and Mobil Quix service stations in Sydney, Melbourne, Brisbane and Adelaide, subject to approval of the Australian Competition and Consumer Commission. The ACCC subsequently opposed the takeover on the grounds that the acquisition could result in diminished competition. Caltex subsequently abandoned the acquisition, with Mobil entering into an agreement to sell the same sites to 7-Eleven Australia.
Caltex operates the largest oil company retail network in Australia, however the supermarkets Woolworths and Coles have a larger market share than any of the oil companies operating in Australia.
As of August 2012, Caltex operated two petroleum refineries in Australia: one at Kurnell in Sydney, New South Wales, and one at Lytton in Brisbane, Queensland. The Kurnell Refinery ceased operations in 2014, and part of the existing infrastructure such as wharfs and tanks will be converted to a fuel importation and blending terminal.
- Regular Unleaded ((91 Research Octane Number) unleaded petrol)
- Bio E10 Unleaded ((94 Research Octane Number) unleaded petrol blended with up to 10 percent ethanol)
- Bio E-Flex E85 ((103~107 Research Octane Number) unleaded petrol blended with up to 85 percent ethanol) | Manufacturing ceased June 1st 2019 and is expected to be decommissioned at E-Flex sites by July 1st 2019. (E85 now only available at United Petroleum.)
- Vortex 95 ((95 Research Octane Number) premium unleaded petrol)
- Vortex 98 ((98 Research Octane Number) premium unleaded petrol)
- Opal Unleaded Petrol
Most sites stock all of these products, however Bio E10 unleaded is the least common and regular unleaded the most common.
- New Generation Diesel (up to 3 percent biodiesel)
- Vortex Diesel (premium diesel)
- Extra Low Sulphur Diesel - Regular Diesel
- Bio B5 Diesel
- Bio B20 Diesel
Each site only sells at least one of these 3 products.
Other fuel types
- Caltex LPG (Autogas) is available at selected sites.
- Caltex CNG (compressed natural gas)
Lubricants and motor oilEdit
Caltex sells Delo, Havoline, and Revtex brands of motor oil.
Caltex branded sites can have any of the following types of convenience stores.
Star Mart: A large store containing a bakery, coffee and hot food as well as convenience items and an ATM, with toilets usually located inside and often open 24 hours. In 2009, the New Zealand operations were sold off and rebranded as Fix stores, which in turn were rebranded as Night 'n' Day from 2017.
Star Shop: A smaller store with just convenience items and packaged foods and limited operating hours.
Woolworths: Sites that accept a varying but basic four cents per litre discount offer from Woolworths. Shops are branded as Woolworths. Most are the same as a Star Mart, but some are the size of a Star Shop.
Woolworths joint ventureEdit
In 2003 Caltex Australia entered into a joint venture agreement with large supermarket retailer Woolworths Limited. Shortly after in 2004, a similar fuel discount offer was launched by rival Coles Group. Woolworths' existing "Plus Petrol" service stations received Caltex branding and, similarly, Caltex service stations received Woolworths branding—the joint venture outlets became Caltex Woolworths. However, this was the case only with certain Caltex service stations close to Woolworths supermarkets and many remain unassociated with the fuel discount offer.
From 1987 until 1993, Caltex was the title sponsor of Colin Bond Racing. From 2000 until 2007, it was title sponsor of Stone Brothers Racing with Russell Ingall winning the 2005 championship. In 2016 and 2017, Caltex was title sponsor of the Triple Eight Race Engineering car of Craig Lowndes, having previously been an associate sponsor of the team.
Caltex has been operating in New Zealand since 1936. On 1 June 2016, Chevron New Zealand, which operated the Caltex brand in New Zealand, was acquired by Z Energy Ltd. Z Energy, a New Zealand owned company, operates the Caltex network in New Zealand using the brand under licence from Chevron International. The Caltex-branded retail network is independently owned and operated, with the operators setting their own retail fuel prices. There are more than 140 Caltex branded service stations and 70 truck stops around New Zealand. 
Caltex South China Investments Limited operate over 20 stations in Guangdong through various local joint ventures. GS Caltex, from South Korea, have moved into China and operate a few oil stations in Shandong Province.
Texaco began kerosene sales in Hong Kong (and neighbouring China) in 1913 and Caltex began operating in Hong Kong in 1937 with a diesel terminal. The terminal was situated in Tsuen Wan in the New Territories. The road leading to the terminal was therefore named Texaco Road. The oil terminal was moved to Tsing Yi where it is and the land plot in Tsuen Wan was developed into a residential complex named Riviera Gardens. Caltex operates over a dozen service stations through Hong Kong Island, New Territories and Kowloon.
Caltex was established in the Philippines in 1917 when Texas Company began marketing its products in the Philippines through a local distributor, Wise and Co. In 1921, Texaco (Philippines) was formally established and opened its office in Binondo, Manila. Eleven years later, its Pandacan oil depot was converted into a key distribution terminal to bring products by barge to nearby provinces. Caltex celebrated its 75th anniversary in July 2011. They only sell two kinds of gasoline namely Caltex Platinum (Replacement of Gold) (95 octane) and Caltex Silver (91 octane) and one kind of diesel named Caltex Diesel. All these products contain Techron. 
Caltex had a subsidiary in India in early 1940's through early 1980's, however as state owned corporation Indian Oil came in to market, strategically Caltex decided to reduce its operation in India. In State of Gujarat there were 2 major dealers of Caltex, T.C. Brothers Company (Sauratra region) & MS. N. K. Sheth Co. CEO of T.C. Brothers Co, was Mr. Tribhovandas D Parekh (also known as Mr. Pampu-sheth ) & Chairman was Mr. Cuhnilal D Parekh. T. C. Brothers company dealt in Petrolium products, service station for automobiles, paint, tiles, pipes, cements and transportation of oil, kerosene, gasoline/petrol in state of Gujarat. In 2010, Caltex started trading under the name GS Caltex.
Caltex arrived in Singapore around the 1950s. There are 25 stations across the island.
A quarter of Caltex's service stations are located in South Africa making it one of the country's top five petroleum brands. As a subsidiary of Chevron it also owns a refinery in Milnerton, Cape Town which has a production capacity of 100,000 barrels per day and produces a range of petrochemical products which include petrol, diesel, jet fuel, liquefied petroleum gas, fuel oil and paving asphalt. The company also has a lubricants manufacturing plant and laboratory in Durban.
In South Korea, Chevron has operated under the brand name GS Caltex since 1967.
Some Asian operations are run by Caltex (Asia) Limited, based in Taipei. Caltex has a joint venture aviation refueling business in Taiwan airports with Formosa Plastics. It also sells a small quantity of lubricants into Taiwan market.
- Caltex (17 April 1999). "Caltex timeline". Timeline. Retrieved 7 December 2018.
- "Caltex welcomes new investors to share register". Caltex Australia. Caltex. 30 March 2015. Retrieved 5 October 2016.
Caltex Australia Managing Director and CEO Julian Segal today welcomed new investors to its share register following the successful sell down by Chevron of its 50% shareholding in Caltex.
- AFX-News: Caltex Australia poaches Incitec Pivot CEO
- The Australian Archived 1 June 2009 at the Wayback Machine
- "Julian Segal says Caltex to maintain strategy". The Australian. 12 February 2009.
- Chris Zappone (26 July 2012). "Caltex axes up to 630 jobs with refinery closure". The Age. Retrieved 26 July 2012.
- "Caltex Fuel Types In Australia". Caltex Australia.
- "Star Mart stores reborn as Fix". Dominion Post. 25 July 2009.
- Retail Design Awards - Fix Convenience Store Archived 6 May 2013 at the Wayback Machine
- NZ Herald 24/7/2009 - Quick Fix for city Star Marts
- "Woolworths and Caltex Work Together in Petrol" (PDF) (Press release). Woolworths Limited, Caltex Australia Limited. 21 August 2003. Retrieved 17 September 2007.
- "Z Energy Ltd". About Z. Retrieved 13 September 2017.
- "Caltex in New Zealand". Retrieved 13 September 2017.
- "Caltex in Malaysia". Caltex Malaysia. Retrieved 16 October 2016.
- "Caltex in Philippines". Caltex Official Website. Retrieved 12 November 2012.
- "GS Caltex India". GS Caltex Official Website.
- "Caltex in Singapore". Caltex SG.
- "South Africa Fact Sheet" (PDF). Chevron. March 2011. Archived from the original (PDF) on 24 January 2012. Retrieved 17 January 2012.
- "BUSINESS ETHICS: CONCEPTS AND CASES" by Manuel Velasquez, "Archived copy". Archived from the original on 24 March 2012. Retrieved 29 November 2011.CS1 maint: Archived copy as title (link)