Can't read it since they went pay, but they are right; they were playing a promo in a loop the other day, and are now Spanish-language.
I don't know where they came up with their number or which one they missed... but actually there are SIX:
KRVT-AM 1270, Claremore
KTOW-AM 1340, Sand Springs
KMUS-AM 1380, Sperry
KXTD-AM 1530, Wagoner
KZLI-AM 1570, Catoosa
KIZS-FM 101.5, Collinsville
All of these signals (with varying degrees of success) get into the Tulsa metro. The Sand Springs signal might be the weakest, followed by Wagoner... although both stations have been programmed to Tulsa in the past and can be picked up on the side of town closest to them. Daytime is also better than nighttime, of course, for the AMs.