The stores are operated by Krause-Gentle Corp. (founded by Mr. Krause and Mr. Gentle, of course), and it appears that the “Kum ‘n’ Go” name was chosen (during a more innocent time, I guess) to maintain the initials “K-G.”
What’s wrong with Kum 'n Go? Fine stores. Sure as an adolescent the name was always good for a laugh, and okay, it still is. I don’t know anything about the stores, though. They were just always good for a laugh and had pretty good doughnuts.
A bit more on the Krause - Gentle Oil Company: Bill Krause married Tony Gentle’s daughter. They started very small with (i think) a Deep Rock (Kerr-McGee) station in Hampton, Ia., they opened a number of stations under the Holiday franchise and soon grew to be the second largest oil company in Iowa. When Holiday went on the decline, they re-branded with the Kum & Go name to, as Nametag mentioned, “…maintain the initials K-G.”
No Kum and Go in New Mexico. In the Las Cruces area, though, there is a local chain of gas station/convenience store outlets called Bar-F. The locals there don’t get it … really.