Philip Martin Shannon (September 2, 1846 – November 22, 1915) was an American politician, businessman, millionaire, and soldier who discovered oil in Wyoming.

[1] In 1861, he enlisted into the 62nd Pennsylvania Infantry Regiment, but was later honorably discharged in 1862 due to wounds he received from the Battle of Gaines's Mill.

In 1874, he was elected as the Burgess of Millerstown and in 1876 ran for a seat in the Pennsylvania legislature, but did not receive the Republican nomination at the state convention.

[3] In 1900, Harry Oscar Lordon, a veteran of the Spanish–American War, attempted to rob Shannon and was found underneath his bed in the Waldorf-Astoria hotel.

[4] On November 22, 1915, he died in his Duquesne Club apartment in Pittsburgh, Pennsylvania.