Correction Ken, the US Coast Guard C-130's are NOT equipped to pass fuel in flight, nor are the USCG MH-60's equipped to recieve fuel in flight. No pods/hoses on the C-130's, no probe on the 60's.
You are of course correct. I had in mind the Air National Guard long range SAR teams which include a KC-130 and MH-60s and ascribed that capability to USCG. My bad.