Where can I go in a dedicated CNG car from Tulsa?

Range of a Honda Civic GX: ~200 miles.
Range of a 2008 Impala with Natural Drive conversion: ~375 miles.

• Branson, MO - 280 mile roundtrip from Miami, OK - YEP
• Shreveport, LA - 615 mile roundtrip from Okmulgee, OK - NOPE
• Oklahoma City, OK - fuel at Stroud, OK and in Oklahoma City - YEP
• Neosho, MO - 240 mile roundtrip - YEP
• McPherson, KS - 290 mile roundtrip from Ponca City, OK - YEP
• Taos, NM - 380 mile one-way from Elk City, OK to Las Vegas, NM - MAYBE, but I better start praying as I pass through Santa Rosa, NM.

I'm learning that the range of a CNG vehicle varies by how much gas mass is in the CNG tank. The amount of mass depends on the temperature and pressure of the stored gas. While most CNG tanks can hold 3,600 psig, a lot of the filling station equipment only supplies 3,000 psig. More later....