• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia

Trendingnow

1

Pentagon accuses Alibaba, Baidu and BYD, three of China's biggest companies, of supporting the Chinese military

2

'We are rapidly running out of time': Watchdog sounds Social Security alarm after 22% cut confirmed for 2032

3

Costco CEO Ron Vachris rose from forklift driver to the C-suite without a college degree: ‘Don’t chase a title’ is the career advice that got him there

1

Pentagon accuses Alibaba, Baidu and BYD, three of China's biggest companies, of supporting the Chinese military

2

'We are rapidly running out of time': Watchdog sounds Social Security alarm after 22% cut confirmed for 2032

3

Costco CEO Ron Vachris rose from forklift driver to the C-suite without a college degree: ‘Don’t chase a title’ is the career advice that got him there
Oil

Marathon Petroleum Is Buying Andeavor. Here’s What It Cost to Become the Biggest Oil Refinery in the U.S.

By
Kirsten Korosec
Kirsten Korosec
Down Arrow Button Icon
By
Kirsten Korosec
Kirsten Korosec
Down Arrow Button Icon
April 30, 2018, 2:02 PM ET

Marathon Petroleum has announced it will buy competitor Andeavor in a $23.3 billion deal that will create the largest independent oil refiner by capacity in the U.S., surpassing the established leader Valero Energy.

Marathon, or MPC, announced Monday that it had agreed to buy all of Andeavor’s outstanding shares that represent a total equity value of $23.3 billion and total enterprise value of $35.6 billion. The transaction was unanimously approved by the board of directors of both companies and is expected to close in the second half of 2018, if it’s approved by regulators and shareholders.

The offer values Andeavor at about $152.27 a share, about 24% over the company’s Friday closing price.

After Marathon buys Andeavor, the company headquarters will be located in Findlay, Ohio, and the combined business will maintain an office in San Antonio, Texas, the companies said Monday.

MPC and @andeavor today announced a definitive merger agreement under which MPC will acquire all of Andeavor's outstanding shares. "This transaction combines two strong, complementary companies …" – G. Heminger, MPC chairman and CEO. https://t.co/7jsZX7JdFb

— Marathon Petroleum (@MarathonPetroCo) April 30, 2018

The deal is notable because of the variety of assets that will eventually come under one company. Marathon’s operations are well established in the Gulf Coast and Midwest, while Andeavor has largely focused on building out refineries and pipelines in the California, mid-continent, and the Pacific Northwest.

The company forms after Marathon buys Andeavor will have a diverse portfolio and massive geographic footprint in the U.S. that should let it operate more efficiently. It also makes it the No. 1 U.S. refiner by capacity with a fuel production throughput of more than 3 million barrels per day. This newly combined company would become a top-five refiner in the world, based on capacity.

MPC Chairman and CEO Gary R. Heminger said Monday in a statement that he expects Marathon buying Andeavor to generate about $1 billion in annual cost and operating synergies within the first three years, which should, in turn, improve its long-term cash flow. The board has authorized an incremental $5 billion in share buybacks based on cash flow it expects to generate with the combined business.

About the Author
By Kirsten Korosec
See full bioRight Arrow Button Icon

Latest in

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in

How the World Cup is a high-stakes stage for Big Tech’s AI push
NewslettersCIO Intelligence
How the World Cup is a high-stakes stage for Big Tech’s AI push
By John KellJune 10, 2026
2 hours ago
‘I love the inflation’: Trump is ‘not concerned’ about inflation hitting 4% for the first time since 2023. ‘The numbers were great’
EconomyDonald Trump
‘I love the inflation’: Trump is ‘not concerned’ about inflation hitting 4% for the first time since 2023. ‘The numbers were great’
By The Associated Press and Christopher RugaberJune 10, 2026
2 hours ago
A man guides a ship in the water.
EnergyOil
Analysts expected oil to surge above $200 but China has quietly kept prices half of that—and can’t for much longer
By Sasha RogelbergJune 10, 2026
3 hours ago
Honda recalls nearly 900,000 cars thanks to rear suspension problems
RetailHonda
Honda recalls nearly 900,000 cars thanks to rear suspension problems
By The Associated PressJune 10, 2026
3 hours ago
Anthropic accused of ‘secret sabotage’ as Claude Fable 5 silently limits capabilities for AI researchers and developers
AIAnthropic
Anthropic accused of ‘secret sabotage’ as Claude Fable 5 silently limits capabilities for AI researchers and developers
By Sharon GoldmanJune 10, 2026
3 hours ago
A 5-week course and a guaranteed job: Meta commits $115 million to solve the skilled-trades shortage stalling its AI buildout
Future of WorkMeta
A 5-week course and a guaranteed job: Meta commits $115 million to solve the skilled-trades shortage stalling its AI buildout
By Jacqueline MunisJune 10, 2026
4 hours ago

Most Popular

Pentagon accuses Alibaba, Baidu and BYD, three of China's biggest companies, of supporting the Chinese military
Asia
Pentagon accuses Alibaba, Baidu and BYD, three of China's biggest companies, of supporting the Chinese military
By Kate O'Keeffe and BloombergJune 8, 2026
2 days ago
'We are rapidly running out of time': Watchdog sounds Social Security alarm after 22% cut confirmed for 2032
Economy
'We are rapidly running out of time': Watchdog sounds Social Security alarm after 22% cut confirmed for 2032
By Nick LichtenbergJune 9, 2026
1 day ago
Costco CEO Ron Vachris rose from forklift driver to the C-suite without a college degree: ‘Don’t chase a title’ is the career advice that got him there
Success
Costco CEO Ron Vachris rose from forklift driver to the C-suite without a college degree: ‘Don’t chase a title’ is the career advice that got him there
By Preston ForeJune 8, 2026
2 days ago
Current price of oil as of June 9, 2026
Personal Finance
Current price of oil as of June 9, 2026
By Joseph HostetlerJune 9, 2026
1 day ago
Wall Street dumped nearly $1 trillion in tech stocks by midday—then clawed it back and bought peanut butter and paint
Investing
Wall Street dumped nearly $1 trillion in tech stocks by midday—then clawed it back and bought peanut butter and paint
By Eva RoytburgJune 9, 2026
23 hours ago
Current price of silver as of Tuesday, June 9, 2026
Personal Finance
Current price of silver as of Tuesday, June 9, 2026
By Joseph HostetlerJune 9, 2026
1 day ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.