It became defunct when fully absorbed by Getty Oil Company in 1974, and the disused Skelly brand logo was revived by Nimmons-Joliet Development Corp. in 2012.

[3] Chesley Coleman Herndon was a practicing attorney in Tulsa when he won several court victories against William Skelly involving oil leases on Osage Indian land.

For the next 37 years, Skelly and Herndon held the number one and two positions in the company, and are buried 25 feet apart in Tulsa's Rose Hill Mausoleum, the same distance as their desks for almost half a century.

What may have been unique to Skelly, beginning in the late 1950s it offered its female customers a Ladies Credit Card in a shade of light blue.

It was an early pioneer of LPG products and building upon its base of substantial uranium ore reserves, established a role in conversion and fuel fabrication and in recovery and reprocessing for the fledgling nuclear power industry.

Skelly was among the leading oil companies to develop a network of truck stops along major highways including the interstate during the 1950s and 1960s.

Skelly also had a contract to sell gasoline at most locations of the now-defunct Nickerson Farms restaurant chain during the 1960s and 1970s,[6] which was similar to Texaco's arrangement with Stuckey's.