Diamond Shamock had a rec area on their Deer Park, TX site's property. In addition to a clubhouse, pool and softball field it had a nine-hole course with two distinct sets of tees. It was an underkept cow pasture quality course through the 70's until a new regional VP said, "if we are to have a course, let's have a course," and put some money into it. The outlay included a contract with San Jacinto Jr. College's Golf Course Maintenance faculty to oversee conditioning. It got to be very playable in the 80's.
It was par 34, but only about 3000-yd long, but the greens were tiny. It had been par 36, but a neighbor's cooling tower drift kept killing a par 4's green and par 5's teebox in a corner of the course. A couple of the holes were tree-lined, but much was open and flat. And it was free to employees so...
Anyway went around it twice one time in the 1980's in 1-under... a day when I hit the ball well, but could've gotten up and down from a trash can.
By contrast... and just to keep it real... I never broke 80 on my old home course. http://www.bayforestgolf.com/