MCKITTRICK, CA - MARCH 23:  Pump jacks and wells are seen in an oil field on the Monterey Shale formation where gas and oil extraction using hydraulic fracturing, or fracking, is on the verge of a boom on March 23, 2014 near McKittrick, California. Critics of fracking in California cite concerns over water usage and possible chemical pollution of ground water sources as California farmers are forced to leave unprecedented expanses of fields fallow in one of the worst droughts in California history. Concerns also include the possibility of earthquakes triggered by the fracking process which injects water, sand and various chemicals under high pressure into the ground to break the rock to release oil and gas for extraction though a well. The 800-mile-long San Andreas Fault runs north and south on the western side of the Monterey Formation in the Central Valley and is thought to be the most dangerous fault in the nation. Proponents of the fracking boom saying that the expansion of petroleum extraction is good for the economy and security by developing more domestic energy sources and increasing gas and oil exports.   (Photo by David McNew/Getty Images)
PHOTO: David McNew/Getty Images
MCKITTRICK, CA - MARCH 23: Pump jacks and wells are seen in an oil field on the Monterey Shale formation where gas and oil extraction using hydraulic fracturing, or fracking, is on the verge of a boom on March 23, 2014 near McKittrick, California. Critics of fracking in California cite concerns over water usage and possible chemical pollution of ground water sources as California farmers are forced to leave unprecedented expanses of fields fallow in one of the worst droughts in California history. Concerns also include the possibility of earthquakes triggered by the fracking process which injects water, sand and various chemicals under high pressure into the ground to break the rock to release oil and gas for extraction though a well. The 800-mile-long San Andreas Fault runs north and south on the western side of the Monterey Formation in the Central Valley and is thought to be the most dangerous fault in the nation. Proponents of the fracking boom saying that the expansion of petroleum extraction is good for the economy and security by developing more domestic energy sources and increasing gas and oil exports. (Photo by David McNew/Getty Images)
Now playing
03:16
Occidental Petroleum tops Chevron's deal for Anadarko
small business loans
small business loans
Now playing
02:45
Funding delays leave small businesses in limbo
Mandatory Credit: Photo by JUSTIN LANE/EPA-EFE/Shutterstock (11700603g)
Pedestrians walk past a closed store in New York, New York, USA, on 08 January 2021. The United States' Bureau of Labor Statistics released data today showing that the US economy lost 140,000 jobs in December and that the unemployment rate is at 6.7 percent as businesses continue to struggle with the economic impact of the coronavirus pandemic.
Coronavirus Economy Impact, New York, USA - 08 Jan 2021
PHOTO: Justin Lane/EPA-EFE/Shutterstock
Mandatory Credit: Photo by JUSTIN LANE/EPA-EFE/Shutterstock (11700603g) Pedestrians walk past a closed store in New York, New York, USA, on 08 January 2021. The United States' Bureau of Labor Statistics released data today showing that the US economy lost 140,000 jobs in December and that the unemployment rate is at 6.7 percent as businesses continue to struggle with the economic impact of the coronavirus pandemic. Coronavirus Economy Impact, New York, USA - 08 Jan 2021
Now playing
01:30
Another 745,000 Americans filed for first-time unemployment benefits
PHOTO: YouTube/Everyday Astronaut
Now playing
01:19
Watch SpaceX Mars prototype rocket nail landing, explode on pad
Now playing
02:55
Marriott CEO: We want travelers to feel safe
CHICAGO, ILLINOIS - JANUARY 15: Demonstrators participate in a  protest outside of McDonald's corporate headquarters on January 15, 2021 in Chicago, Illinois.  The protest was part of a nationwide effort calling for minimum wage to be raised to $15-per-hour. (Photo by Scott Olson/Getty Images)
PHOTO: Scott Olson/Getty Images
CHICAGO, ILLINOIS - JANUARY 15: Demonstrators participate in a protest outside of McDonald's corporate headquarters on January 15, 2021 in Chicago, Illinois. The protest was part of a nationwide effort calling for minimum wage to be raised to $15-per-hour. (Photo by Scott Olson/Getty Images)
Now playing
03:31
What a $15 minimum wage really looks like
PHOTO: MyHeritage
Now playing
01:01
Watch old photos come to life using AI
Now playing
01:19
Warren proposes wealth tax: 'It's time for them to pay a fair share'
Nigerian former Foreign and Finance Minister Ngozi Okonjo-Iweala smiles during a press conference on July 15, 2020, in Geneva, following her hearing before World Trade Organization 164 member states' representatives, as part of the application process to head the WTO as Director General. (Photo by Fabrice COFFRINI / AFP) (Photo by FABRICE COFFRINI/AFP via Getty Images)
PHOTO: FABRICE COFFRINI/AFP/Getty Images
Nigerian former Foreign and Finance Minister Ngozi Okonjo-Iweala smiles during a press conference on July 15, 2020, in Geneva, following her hearing before World Trade Organization 164 member states' representatives, as part of the application process to head the WTO as Director General. (Photo by Fabrice COFFRINI / AFP) (Photo by FABRICE COFFRINI/AFP via Getty Images)
Now playing
04:05
WTO Chief: We need equitable and affordable access to vaccines
Goya Foods President Robert Unanue speaks at a press conference with Carlos Vecchio, the Venezuelan Ambassador who is recognized by the United States on December 21, 2020 in Doral, Florida. The two held the press conference to discuss details of a recent shipment of humanitarian aid to Venezuela, donated by Goya Foods. (Photo by Joe Raedle/Getty Images)
PHOTO: Joe Raedle/Getty Images
Goya Foods President Robert Unanue speaks at a press conference with Carlos Vecchio, the Venezuelan Ambassador who is recognized by the United States on December 21, 2020 in Doral, Florida. The two held the press conference to discuss details of a recent shipment of humanitarian aid to Venezuela, donated by Goya Foods. (Photo by Joe Raedle/Getty Images)
Now playing
03:24
Goya CEO under fire for false Trump election claims
Now playing
01:23
'There should be no threats': Biden's message to union-busters
Misinformation Trump Capitol March rn orig_00004630.png
Misinformation Trump Capitol March rn orig_00004630.png
Now playing
04:08
These Trump supporters are convinced he will be president again on March 4
Now playing
01:36
Michael Bolton wants you to break up with Robinhood
Now playing
01:57
Fed chief downplays inflation concerns
Now playing
04:34
See what has happened to Trump's DC hotel after his loss
Now playing
01:41
Meet the 29-year-old cancer survivor set to make history in space
(CNN Business) —  

Chevron has conceded defeat in the battle for Anadarko Petroleum.

The oil major said in a statement Thursday that it would not increase its offer for Anadarko, putting rival Occidental Petroleum in position to gain control of prized shale assets.

“Winning in any environment doesn’t mean winning at any cost,” Chevron CEO Michael Wirth said in a statement. “We will not dilute our returns or erode value for our shareholders for the sake of doing a deal.”

Anadarko said earlier this week that it had received an offer from Occidental that was superior to a previously accepted bid from Chevron.

The offer from Occidental is worth $76 per share, $59 of which is cash. Chevron had until May 10 to make a counter offer, but it said Thursday that it would let the deadline expire.

Chevron said it expects Anadarko to pay a termination fee of $1 billion.

Shares in Chevron (CVX) increased 3% in premarket trade. Occidental (OXY) stock dropped 5%.

Occidental has been backed by Berkshire Hathaway’s Warren Buffett, who invested $10 billion in the company to help finance its takeover of Anadarko.

The interest in Anadarko reflects an intense desire by US oil companies to acquire America’s best shale assets. Occidental is already the No. 1 oil producer in the vast Permian Basin.

“We look forward to signing a merger agreement with Anadarko and realizing value for our stakeholders as soon as possible,” Occidental said in a statement.