Francis Murray Patrick McMahon (/məkˈmæn/ mək-MAN; October 2, 1902 – May 20, 1986) was a Canadian oilman best known as the founder of Pacific Petroleums and the Westcoast Transmission Company.

"[1] In addition, McMahon was a major racehorse owner/breeder whose Thoroughbreds competed in North America and Europe and who won the 1969 Kentucky Derby and Preakness Stakes with the U.S.

Frank McMahon was born in the village of Moyie in the East Kootenays of British Columbia, Canada, the son of a hard-rock miner.

As a young man, he worked as a driller for British Columbia mining companies until 1927 when he founded his own diamond-drilling contracting business which he expanded into drilling for oil and natural gas.

In 1949 he incorporated Westcoast Transmission Co. Ltd. whose business plan included the construction of a 650-mile gas pipeline from Taylor in north-eastern British Columbia to the United States.

McMahon personally began lobbying the Canadian and American governments to remove their restrictions on the export and import of natural gas.

In 1964, Westcoast Transmission built another processing plant at Fort Nelson, British Columbia, in support of an additional 250-mile line to the company's new discoveries in the Canadian Northwest.

McMahon's significant contribution to Canada's economic prosperity was recognized by his election to the Canadian Business Hall of Fame.

Frank McMahon, a founding member of the Jockey Club of Canada, raced thoroughbreds on his own as well as in partnership with others.

Together with Calgary newspaper publisher Max Bell, McMahon founded the Golden West Farms thoroughbred breeding operation at Okotoks, Alberta.

Among its notable wins, Golden West Farms' racing stable won the 1968 Queen's Plate with Merger.

In partnership with American singer, Bing Crosby, McMahon and Bell owned Meadow Court who raced in Europe where he won the 1965 Irish Derby and the King George VI and Queen Elizabeth Stakes.

Leslie Combs also bred McMahon's Triple Bend, a colt who set a world record time in winning the 1972 Los Angeles Handicap.

After graduation, she worked for a year for Harper's Bazaar, and then went on to create an advice column for teens, which was syndicated in Hearst newspapers.

The McMahons maintained several residences, including the famous "Concha Marina" in Palm Beach and "Crow Lane House" in Bermuda.