(Adds Occidental-Pioneer and Diamondback-Endeavor deals,

recasts paragraph 1)

May 2 (Reuters) -

Top U.S. oil and gas producer Exxon Mobil ( XOM ) has

won the approval of the Federal Trade Commission

(FTC) to close its deal for Pioneer Natural Resources ( PXD )

on the condition that former Pioneer CEO Scott Sheffield

is kept off its board.

The U.S. oil and gas industry went on a $250 billion buying

spree in 2023 and the consolidation wave has continued into

2024.

The mergers and acquisitions have drawn increased

antitrust scrutiny, with the FTC reviewing multi-billion dollar

deals, including those involving Chevron ( CVX ), Diamondback

Energy ( FANG ), Occidental Petroleum ( OXY ) and Chesapeake

Energy ( CHK ).

Here are the major deals in the global oil and gas sector

since the 2000s:

2001

Chevron ( CVX ) buys Texaco in a $39.5 billion deal and emerges as

one of the largest energy firms in the world.

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 ( COP ).

2005

Chevron ( CVX ) agrees to buy California rival Unocal for about

$16.4 billion after fighting off Italian oil group Eni,

China's CNOOC and other rumored suitors.

2006

ConocoPhillips ( COP ) acquires Burlington Resources in a $35.6

billion deal and gains access to lucrative positions in North

American gas-rich basins.

2007

Norway's Statoil buys the oil and gas assets of Norsk Hydro ( NHYKF )

for $30 billion to create a new energy firm, Equinor ( EQNR ).

2010

Exxon Mobil ( XOM ) acquires XTO Energy for about $30 billion in

stock to bolster its position as a leading U.S. natural gas

producer.

2012

Russia's state oil company Rosneft buys TNK-BP

from UK-based BP in a $55 billion deal.

Kinder Morgan ( KMI ) finalizes a $21 billion deal to buy El

Paso Corp, combining the two largest natural gas pipeline

operators.

2014

Kinder Morgan ( KMI ) buys all of its publicly traded units (Kinder

Morgan Energy Partners LP, Kinder Morgan Inc ( KMI ) with Kinder Morgan

Management and El Paso Pipeline Partners) in a $70 billion deal.

2015

Shell (then Royal Dutch Shell) acquires British

rival BG Group in a $70 billion deal.

2018

Marathon Petroleum ( MPC ) takes over rival Andeavor for $23

billion.

2019

Occidental Petroleum ( OXY ) acquires Anadarko Petroleum in

a $38 billion deal.

2020

ConocoPhillips ( COP ) buys Concho Resources for $9.7 billion in

2020's top shale deal.

Saudi Aramco 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 ( AKRBF ) 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 ) agrees to sell its petroleum business to

Woodside 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 ) for $18.8 billion,

creating one of the largest U.S. energy pipeline companies.

ExxonMobil ( XOM ) agrees to buy Pioneer Natural Resources ( PXD )

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.

Chevron ( CVX ) agrees to buy smaller rival Hess Corp ( HES ) in a

$53 billion all-stock deal, putting the company head-to-head

against rival ExxonMobil ( XOM ) in two of the world's fastest growing

oil basins - shale and Guyana.

Occidental Petroleum ( OXY ) agrees to buy privately held

CrownRock in a cash-and-stock deal valued at $12 billion, its

biggest since the debt-laden acquisition of Anadarko Petroleum

in 2019.

2024

Diamondback Energy ( FANG ) signs an agreement to

acquire privately held rival Endeavor Energy Partners in a $26

billion cash-and-stock deal to boost its presence in the

prolific Permian basin.