[I was primarily “exploration” centered but positioned a number of on-shore & off-shore rigs for discovery drilling from Sumatra to Irian Jaya. Lots of time in the Flores Sea back then - a hot spot for oil production at the time.
Lots of WWII aircraft, vehicles and other (mostly Japaneese) equipment in the open and hidden in the jungle.
Fun.]
I was sponsored by MACV when in-country. (civillian contractor).
When I left Nam I started picking up private contracts with Pertamina (Indonesian Oil Co.) & Shell mostly. Some with Satellite Positioning Corp. out of Houston and Western Geophysical.
R&R was defined by the Co. I worked for in Nam. Very different from what the troops options were. My peers and I got to see a lot of the world while winding down between stints in-country.