Premier Oil was first registered in the UK in 1934 (then as the Caribbean Oil Company) to exploit oil and gas in Trinidad.
The company acquired its first interest in the North Sea in 1971. In 1977 it gained further access to the UK continental shelf as well as properties in Sudan and West Africa by merging with Ball and Collins North Sea Consortium. Its 12.5% share in the onshore oil field at Wytch Farm in Dorset acquired in 1984 (and the subsequent offshore extension of this field) was still making an important contribution to the revenues in 2008.
Premier Oil has been established in Burma since 1990 (and insists on referring to the country as Myanmar, the name given by its military dictatorship). In 1992 the Yetagun Gas Field was discovered and gas sales to Thailand from that field started in May 2000. Since then offshore facilities have been built in the Gulf of Martaban, 124 miles off the west coast of Burma and a 168-mile long pipeline has been constructed to the Thai border. This $650 million project was Premier Oil's biggest during that period (Premier's stake in it is estimated to $200 million) and was expected to yield gas for the coming 20 years.
In 1996 it acquired Sumatra Gulf Oil Ltd and Discovery Petroleum in Indonesia, giving them a majority interest in the Natuna Sea Block A (including the Anoa oil field).
In 1998, Premier and Shell created a joint venture company in Pakistan which was involved in 11 concessions and five significant gas fields. In May 2001, Shell pulled out of this project (further information in Corporate Crimes).
UK fracking investments
- Premier is the largest shareholder in Egdon Resources, UK based gas exploration company (other owners include investment managers Hargreave Hale & Co and its directors.)
- Rick Haythornthwaite is a former commercial director for Premier Oil, who is now chairman of Centrica. In 2008 he was chairman for the Risk and Regulation Advisory Council (RRAC), a body set up to advise and influence the UK Government on regulation issues. He was previously chairman of the RRAC's predecessor - the Better Regulation Commission. 
Legal and lobbying consultancies retained
In 2000 Premier was a relatively small company devoted entirely to the 'upstream' sector of the industry - the exploitation of oil and gas - as opposed to the 'downstream' refining and retail sector. In 2000 the company had 445 employees and a sales of £99.4 million (US$ 136.35 million). 
- Premier Oil: Products and Projects
- Premier Oil: Who, Where, How Much?
- Premier Oil: Influence / Lobbying
- Premier Oil: Corporate Crimes
- Premier Oil:Links, contacts & resources
- Most of the information is in this section was gathered from 'Our History' at Premier Oil's homepage in 2008.
- Department for Business, Enterprise and Regulatory Reform Rick Haythornthwaite Accessed 29 January 2008
- Premier Oil, Annual Report & Accounts 2000