Question: Are Alphabet Inc. and Marathon Oil both American?

Context paragraphs:
Verily Life Sciences: Verily (formerly Google Life Sciences) is Alphabet Inc.'s research organization devoted to the study of life sciences.  The organization was formerly a division of Google X, until 10 August 2015 when Sergey Brin announced that the organization would become an independent subsidiary of Alphabet Inc. This restructuring process was completed on October 2, 2015.  On December 7, 2015, Google Life Sciences was renamed Verily.

Leach Railroad Station, Kentucky: Leach Railroad Station, is an unincorporated community located 3 miles south of Catlettsburg in Boyd County, Kentucky.  It was first established in approximately 1882 as a freight and passenger loading facility for the Chatteroi railroad (later Chesapeake and Ohio Railway).  The former community of Leech Station is now mostly owned by Marathon Oil, which operates one of its seven oil refineries there.  Marathon bought the large refinery at Leech Station from Ashland, Inc. in 1999.  In 2000, Marathon took over ownership of old U.S. 23 and then purchased the remaining residential property located at Leech Station.

Albian Sands: Albian Sands Energy Inc. is the operator of the Muskeg River Mine, an oil sands mining project located 75 km north of Fort McMurray, Alberta, Canada.  It is a joint venture between Shell Canada (60%), Marathon Oil Canada (20%) and Chevron Canada (20%).  The company's legal headquarters are located in the Shell Tower in Calgary, Alberta.  Albian Sands got its name from the Albian Boreal Sea which, during the Albian stage of the Cretaceous (over 100 million years ago), moved over the McMurray sands and deposited a blanket of marine shale on its floor which trapped the hydrocarbons of the McMurray Formation.  The oil sands resources of the Muskeg River Mine are a legacy of the Albian Sea.

Marathon Oil Service Station: The Marathon Oil Service Station is a historic automotive service facility at the southeast corner of East 2nd and Spring Streets in downtown Fordyce, Arkansas.  It is a single story building constructed out of red and buff brick, with an auto canopy covered in a tile roof.  The main facade of the building has a parapet which conceals a barrel roof.  The building is divided into two functional bays, an office to the left and a garage bay to the right.  The canopy extends in front of the left bay, and is supported by a single brick column, in which there is an original Marathon Oil logo.  The building is a well-preserved example of a 1920s service station.

Google: Google Inc. is an American multinational technology company that specializes in Internet-related services and products.  These include online advertising technologies, search, cloud computing, software, and hardware.  Google was founded in 1998 by Larry Page and Sergey Brin while they were Ph.D. students at Stanford University, in California.  Together, they own about 14 percent of its shares, and control 56 percent of the stockholder voting power through supervoting stock.  They incorporated Google as a privately held company on September 4, 1998.  An initial public offering (IPO) took place on August 19, 2004, and Google moved to its new headquarters in Mountain View, California, nicknamed the Googleplex.  In August 2015, Google announced plans to reorganize its various interests as a conglomerate called Alphabet Inc. Google, Alphabet's leading subsidiary, will continue to be the umbrella company for Alphabet's Internet interests.  Upon completion of the restructure, Sundar Pichai was appointed CEO of Google; he replaced Larry Page, who became CEO of Alphabet.

Alphabet Inc.: Alphabet Inc. is an American multinational conglomerate created in a corporate restructuring of Google on October 2, 2015.  It is now the parent company of Google and several former Google subsidiaries.  The two founders of Google assumed executive roles in the new company, with Larry Page serving as CEO and Sergey Brin as President.  The company is based in Mountain View, California.  It has over 75,606 employees as of 2017.

Brae oilfield: The Brae field is a Scottish oil field.  The name comes from a Scots language word for hillside.  The Fields are operated by Marathon Oil and are located in UKCS block 16/7a.  Three accumulations total about 70 million tonnes of oil liquids and a further 22 cubic kilometres of gas.  The main platforms currently produce from underlying reserves, with regular infill drilling to identify and exploit undrained pockets in the Brae stratigraphy.  A number of subsea tieback fields in the area produce through facilities on the platforms, extending their viability into the future.  Gas is exported to St Fergus, Scotland via the SAGE pipeline system and oil is exported via the Forties system.

Marathon Oil: Marathon Oil Corporation is an American petroleum and natural gas exploration and production company headquartered in the Marathon Oil Tower in Houston, Texas.

Clarence P. Cazalot, Jr.: Clarence P. Cazalot, Junior (born 1950) was president and chief executive of the Houston-based Marathon Oil Corporation.  Since he took over control of the company in 2002, Marathon has expanded abroad with investments in the nascent gas industry of Equatorial Guinea and oil in Gabon, Libya and Norway.  Its upstream earnings from overseas projects have been tripled and Marathon is beginning to sell off the smaller assets.

Waha field: Waha field is an oil field located in the Libya sirte basin and owned by the Waha Oil Company (WOC), which is a subsidiary of the National Oil Corporation (NOC).  During 2006, the Waha fields produced around 350000 oilbbl per day, down from around 1 Moilbbl/d in 1969 and 400000 oilbbl/d in 1986.  However, WOC expects to increase Waha output by around 200000 oilbbl/d over the next couple of years.  In 2005, ConocoPhillips and co-venturers reached an agreement with NOC to both return to its operations in Libya and to extend the Waha concession by another 25 years.  ConocoPhillips operates the Waha fields with a 16.33% share in the project.  NOC has the largest share of the Waha concession at 59.17%, and additional partners include Marathon Oil (16.33%), and Amerada Hess (8.17%).

Supporting paragraphs: Alphabet Inc. Marathon Oil
Answer: yes