Amgen vs BP: Founders, CEOs and History
Amgen was founded in 1980 by George B. Rathmann, William K. Bowes Jr. and is led by Robert A. Bradway. BP was founded in 1909 by William Knox D'Arcy, Charles Greenway and is led by Meg O'Neill.
Company facts
Founders
Amgen
George B. Rathmann
Amgen, originally incorporated as Applied Molecular Genetics, was founded in 1980 not by a single scientist, but by a calculated syndicate of venture capitalists and academics trying to commercialize the brand-new science of recombinant DNA.
William K. Bowes Jr.
William K. Bowes Jr. Was the venture capital strategist whose vision catalyzed Amgen's formation.
BP
William Knox D'Arcy
William Knox D'Arcy (1849-1917) financed the search that created BP. In 1901 he obtained a 60-year concession from the Shah of Persia to explore for and produce oil across about three-quarters of the country, paying £20,000 in cash, £20,000 in shares and 16% o…
Charles Greenway
Charles Greenway (1857-1934) was not among the 1909 incorporators but became the executive who turned Anglo-Persian into a working oil company.
CEOs and their tenures
Amgen
- George B. Rathmann1980–1988
Chief Executive Officer
George Rathmann, a physical chemist who had run research and development at Abbott Laboratories, was named Amgen's first chief executive in 1980 and worked from a small trailer so that laboratory space could go to scientists.
Source - Gordon M. Binder1988–2000
Chief Executive Officer
Gordon Binder joined Amgen as chief financial officer in 1982 and led its June 1983 initial public offering.
Source - Kevin W. Sharer2000–2012
Chief Executive Officer
Kevin Sharer joined Amgen in 1992 as president and chief operating officer and became chairman and chief executive in 2000.
Source - Robert A. Bradway2012–present
Chairman and Chief Executive Officer
Robert Bradway became chief executive on May 23, 2012, succeeding Kevin Sharer as the fourth CEO in Amgen's history, and added the chairmanship at the start of 2013.
Source
BP
- Sir John Browne1995–2007
Chief Executive Officer (former)
John Browne (later Lord Browne of Madingley) turned BP into a global supermajor through the acquisitions of Amoco (1998), ARCO (2000) and Burmah Castrol (2000).
Source - Tony Hayward2007–2010
Chief Executive Officer (former)
Tony Hayward, a geologist who joined BP in 1982 and ran its exploration and production business, succeeded John Browne in May 2007 and promised to fix BP's safety culture after Texas City.
Source - Bob Dudley2010–2020
Chief Executive Officer (former)
Bob Dudley, an American who began his career at Amoco and previously ran the TNK-BP joint venture in Russia, was BP's first American CEO, serving from October 2010 to February 2020.
Source - Bernard Looney2020–2023
Chief Executive Officer (former)
Bernard Looney's three-and-a-half-year tenure as CEO was defined by the most ambitious energy transition strategy ever articulated by a major oil company and ended in its most dramatic leadership dismissal.
Source - Murray Auchincloss2024–2025
Chief Executive Officer (former)
Murray Auchincloss, a Canadian who joined Amoco in 1992 and became BP's CFO in 2020, was interim CEO after Bernard Looney's September 2023 exit and permanent CEO from January 2024.
Source - Carol Howle2025–2026
Interim Chief Executive Officer (former)
Carol Howle, BP's executive vice president for supply, trading and shipping, served as interim CEO from December 2025, when Murray Auchincloss stepped down, until Meg O'Neill joined on April 1, 2026.
Source - Meg O'Neill2026–present
Chief Executive Officer
Meg O'Neill, an American engineer who spent more than two decades at ExxonMobil and ran Australia's Woodside Energy from 2021, became BP's chief executive on April 1, 2026, the first woman to lead the company.
Source
Timeline: Amgen and BP side by side
1901BP
D'Arcy Persian Concession
William Knox D'Arcy obtains a 60-year oil concession from the Shah of Persia covering about 480,000 square miles, roughly three-quarters of the country, in exchange for £20,000 in cash, £20,000 in shares and 16% of annual profits.
1908BP
Discovery of Oil at Masjid-i-Suleiman
After seven years of expensive and largely unsuccessful drilling, field manager George Reynolds strikes oil at Masjid-i-Suleiman in south-west Persia on May 26, 1908. It is the first commercial oil discovery in the Middle East.
1909BP
Anglo-Persian Oil Company Incorporated
The Anglo-Persian Oil Company is formally incorporated in April 1909, with William Knox D'Arcy and the Burmah Oil Company as principal backers.
1914BP
British Government Acquires 51% Stake
At the urging of Winston Churchill, First Lord of the Admiralty, the British government pays ~$2.9 million (£2.2 million) for a 51% stake in Anglo-Persian and signs a long-term fuel-oil supply contract for the Royal Navy, which is converting its fleet from coa…
1954BP
Renamed British Petroleum
Following the 1953 resolution of the Iranian nationalization crisis and the Shah's restoration to power, the company renames itself British Petroleum Company.
1970BP
North Sea Forties Field Discovery
BP discovers the Forties field in the UK North Sea, one of the largest oil fields ever found in British waters. Together with Alaska's Prudhoe Bay, it gives BP politically secure production just as Middle Eastern governments take control of their oil.
1980Amgen
Applied Molecular Genetics is incorporated
Applied Molecular Genetics (AMGen) was incorporated on April 8, 1980 in Thousand Oaks, California, as the idea of venture capitalist William K. Bowes Jr. and a group of scientific collaborators.
1983Amgen
Nasdaq listing and the erythropoietin clone
Amgen completed its initial public offering on June 17, 1983, raising nearly US$40 million under chief financial officer Gordon Binder, and formally shortened its name to Amgen.
1984Amgen
Kirin-Amgen joint venture formed
Amgen and Kirin Brewery Company of Japan formed Kirin-Amgen in 1984 as a joint venture for the worldwide commercialization of erythropoietin.
1985Amgen
G-CSF cloned, leading to Neupogen
While Fu-Kuen Lin's team worked on erythropoietin, researcher Larry Souza and his group cloned and expressed human granulocyte colony-stimulating factor in 1985.
1987BP
UK Government Privatization Complete
The Thatcher government completes the privatization of its remaining 31.5% stake in BP through a global share offering timed for October 1987 weeks before the global stock market crash known as Black Monday disrupted the sale and left underwriters with unsold…
1989Amgen
FDA approves Epogen
The FDA approved Epogen (epoetin alfa) on June 1, 1989 for anemia in patients with chronic kidney failure on dialysis. It was the first commercial recombinant human erythropoietin. Epogen's U.S.
1991Amgen
Neupogen approved, giving Amgen a second franchise
The FDA approved Neupogen (filgrastim) in February 1991. By stimulating white blood cell production it reduced the risk of infection in cancer patients with chemotherapy-induced neutropenia.
1991Amgen
Amgen wins the erythropoietin patent fight
On March 6, 1991 the U.S. Court of Appeals for the Federal Circuit upheld the Kirin-Amgen erythropoietin patent and ruled against Genetics Institute in Amgen v. Chugai Pharmaceutical and Genetics Institute.
1998BP
Merger with Amoco Corporation
BP merges with Chicago-based Amoco Corporation in a deal valued at approximately $48.2 billion the largest industrial merger in history at the time.
2000BP
Beyond Petroleum Rebrand
Under then-CEO Sir John Browne, BP launches the 'Beyond Petroleum' rebranding campaign, introducing the sunflower logo still in use today and publicly positioning the company as an energy company committed to addressing climate change.
2001Amgen
FDA approves Aranesp, the longer-acting EPO
Aranesp (darbepoetin alfa), an erythropoietin analogue with modified glycosylation and a longer half-life, was approved in 2001. Less frequent dosing than Epogen improved convenience and gave Amgen a newer, higher-priced product to migrate patients toward.
2002Amgen
US$16 billion Immunex acquisition brings Enbrel in-house
Amgen completed its acquisition of Immunex Corporation on July 16, 2002, the largest biotechnology deal to that point at about US$16 billion in stock and cash.
2010Amgen
Prolia and XGEVA create the bone health franchise
The FDA approved Prolia (denosumab) for postmenopausal osteoporosis in June 2010 and XGEVA, the same molecule at a higher dose, for prevention of skeletal-related events in cancer patients in November 2010.
2010BP
Deepwater Horizon Disaster
The Deepwater Horizon drilling rig, operating on the Macondo well in the Gulf of Mexico under contract to BP, suffers a catastrophic blowout on April 20, 2010, killing 11 workers and triggering the largest marine oil spill in US history approximately 4.9 milli…
2019Amgen
US$13.4 billion purchase of Otezla from Celgene
Amgen agreed in August 2019 to buy worldwide rights to Otezla (apremilast) from Celgene for US$13.4 billion in cash, or about US$11.2 billion net of the present value of US$2.2 billion of anticipated future cash tax benefits, and closed on November 21, 2019.
2020Amgen
Amgen joins the Dow Jones Industrial Average
Amgen replaced Pfizer in the Dow Jones Industrial Average on August 31, 2020, becoming one of the thirty components in the index. Inclusion recognized the scale Amgen had reached and added passive demand from Dow-tracking funds.
2020BP
Net-Zero Commitment and Dividend Cut
Under new CEO Bernard Looney, BP sets a net-zero ambition for 2050 and, in August 2020, pledges to cut oil and gas production by 40% by 2030 and raise low-carbon investment to about $5 billion a year.
2023Amgen
US$27.8 billion Horizon Therapeutics acquisition closes
Amgen completed the acquisition of Horizon Therapeutics plc on October 6, 2023 for US$116.50 per share in cash, an equity value of about US$27.8 billion, after settling FTC litigation with a behavioral consent decree.
2024Amgen
Imdelltra becomes the first T-cell engager for small cell lung cancer
The FDA granted accelerated approval to tarlatamab, sold as Imdelltra, on May 16, 2024 for extensive stage small cell lung cancer that has progressed on or after platinum-based chemotherapy.
2024BP
Auchincloss Confirmed as CEO
Murray Auchincloss, BP's CFO since 2020 and interim chief since Bernard Looney's September 2023 exit, is confirmed as permanent CEO in January 2024.
2025Amgen
VESALIUS-CV extends the Repatha case to primary prevention
In November 2025 Amgen reported Phase 3 VESALIUS-CV results in more than 12,000 patients with atherosclerosis or diabetes but no prior heart attack or stroke.
2025BP
Strategy Reset and Bumerangue Discovery
In February 2025 BP cuts planned transition investment to $1.5-2 billion a year, raises upstream spending to about $10 billion a year and targets $20 billion of divestments and $14-18 billion of net debt by 2027.
2025BP
CEO Change and Castrol Sale Agreed
On December 17, 2025 BP says Murray Auchincloss will step down and names Woodside Energy CEO Meg O'Neill as his successor from April 2026, with Carol Howle as interim CEO.
2026Amgen
Medicare price setting reaches Enbrel and Otezla
Enbrel's negotiated Medicare price under the Inflation Reduction Act took effect on January 1, 2026, after it was named in the first round of ten drugs selected for negotiation.
2026BP
O'Neill Takes Over and Simplifies BP
Meg O'Neill becomes CEO on April 1, 2026. The board removes chair Albert Manifold on May 26 over governance and conduct concerns and names Ian Tyler interim chair, confirming him as permanent chair on September 2.
Acquisitions
Amgen
- Horizon Therapeutics plc2023$27.8B
- ChemoCentryx, Inc.2022$3.7B
- Five Prime Therapeutics2021$1.9B
- Celgene Otezla Business2019$13.4B
- Onyx Pharmaceuticals, Inc.2013$10.4B
- DeCODE Genetics2012$415M
BP
- TravelCenters of America2023$1.3B
- Archaea Energy2022$4.1B
- Lightsource Renewable Energy (43% stake, later 100%)2017$200M
- ARCO (Atlantic Richfield Company)2000$27B
- Castrol Limited2000$4.7B
- Amoco Corporation1998$48.2B
Questions about Amgen vs BP
Who is the CEO of Amgen Inc. and BP plc?
Amgen Inc. is led by Robert A. Bradway and BP plc is led by Meg O'Neill. Both serve as the top executive responsible for the company's strategy, operations, and financial performance.
When was Amgen Inc. founded vs BP plc?
BP plc was founded in 1909 — 71 years before Amgen Inc., which was founded in 1980. BP plc's longer operating history gives it a deeper track record but also potentially more institutional inertia compared to the younger Amgen Inc..
How many employees does Amgen Inc. have compared to BP plc?
Amgen Inc. employs approximately 31,500 people, while BP plc employs approximately 93,700. BP plc has the larger workforce at 93,700 employees, compared to Amgen Inc.'s 31,500. A higher headcount does not necessarily imply greater efficiency — it often reflects differences in business model (e.g., manufacturing vs. software).
Where are Amgen Inc. and BP plc headquartered?
Amgen Inc. is headquartered in United States and BP plc is headquartered in United Kingdom. Their different home markets mean they may face different regulatory frameworks, tax regimes, and currency exposure.
Who founded Amgen Inc. and BP plc?
Amgen Inc. was founded by George B. Rathmann, William K. Bowes Jr.. BP plc was founded by William Knox D'Arcy, Charles Greenway.
Which company has a longer operating history — Amgen Inc. or BP plc?
BP plc has been operating for approximately 117 years, making it the more established of the two companies. Amgen Inc. has been in operation for around 46 years. A longer operating history often signals greater institutional resilience and brand recognition, though it can also mean slower adaptation to new market conditions.
Figures come from each company's filings and the sources linked beside them. Amounts reported in another currency are shown in US dollars at an approximate rate and marked with ~. Back to the Amgen vs BP overview