Chevron Corp (CVX.N) said on Monday it will buy smaller rival Hess Corp (HES.N) in a $53 billion all-stock deal, putting the company head to head with rival Exxon (XOM.N) in two of the world's fastest growing oil basins - shale and Guyana.
The deal comes weeks after Exxon made a $59.5 billion offer for Pioneer Natural Resources (PXD.N) that would make it the biggest producer in the largest U.S. oilfield.
Here are the major deals in the global oil and gas sector since the 2000s:
2001
2002
Shareholders of Conoco and Phillips Petroleum, and the Federal Trade Commission approve an $18 billion merger between the companies and created the third-largest U.S. oil firm ConocoPhillips.
2005
Chevron agrees to buy California rival Unocal for about $16.4 billion after fighting off Italian oil group Eni (ENI.MI), CNOOC and other rumored suitors.
2006
2007
Norway's Statoil buys the oil and gas assets of Norsk Hydro for $30 billion to create a new energy firm, Equinor (EQNR.OL).
2010
2012
Russia's state oil company Rosneft (ROSN.MM) buys TNK-BP from UK-based BP (BP.L) in a $55 billion deal.
Kinder Morgan finalizes a $21 billion deal to buy El Paso Corp, combining the two largest natural gas pipeline operators.
2014
2015
Shell (then Royal Dutch Shell) acquires British rival BG Group in a $70 billion deal.
2018
Marathon Petroleum (MPC.N) takes over rival Andeavor for $23 billion.
2019
Occidental Petroleum (OXY.N) acquires Anadarko Petroleum in a $38 billion deal.
2020
ConocoPhillips (COP.N) buys Concho Resources for $9.7 billion in 2020's top shale deal.
Saudi Aramco (2222.SE) completes its purchase of a 70% stake in petrochemicals company Saudi Basic Industries for $69.1 billion.
PipeChina takes over oil and gas pipelines, and storage facilities from PetroChina and Sinopec in a deal valued at $55.9 billion.
2021
Norway's Aker BP (AKRBP.OL) buys Sweden's Lundin Energy in a $13.9 billion cash and stock deal, to form Norway's second largest listed oil firm.
BHP Group (BHP.AX) agrees to sell its petroleum business to Woodside Petroleum in a merger to create an oil and gas producer worth $28 billion with growth assets in Australia and the Americas.
2023
Magellan Midstream Partners' unitholders vote in favor of its sale to larger rival ONEOK (OKE.N) for $18.8 billion, creating one of the largest U.S. energy pipeline companies.
Exxon Mobil (XOM.N) agreed to buy Pioneer Natural Resources (PXD.N) in an all-stock deal valued at $59.5 billion that would make it the biggest producer in the largest U.S. oilfield and secure a decade of low-cost production.
