I second the info from Buttermilk. I have hunted Texas County and took a doe, draw hunt, with my XP100 in .260 at 205 yds. Hunted sections, some with good grass, about 24" tall. Did some crawling. Scouted a lot from the roads and found what I wanted. I helped two other hunting friends that drew Cimarron County and I found a place for them about 12 miles north of Boise City, OK along the Cimarron River on private land. It was part of the Strong Ranch. Both my friends had drawn doe tags and the first day of scouting, we say probably 15 bucks a few doe.
The next morning we set up on a water hole and glassed. I spotted a group about 1 mile from where we were setting and told my friend, go to the truck, about 100 yds, get plenty of water in the pack, put the pistol up and get your .270 and I will fold up the blind and we are going after them. About two hours later, using ditches and hills we got to 270 yards and ran out of cover. He took a nice horned doe.
I also hunt Wyoming and I carry a back pack, with some plastic bags, latex gloves and a good knife. I take them apart in the field, cutting down the back peeling the hide off, taking the hind quarters and shoulders off, bagging them, cut the back straps out, cut in between ribs in and reach in and take out the tenderloins, never gutting the antelope. Pack it back to the truck and put it on ice.
Call around, if you want to hunt private land. Sometimes the fire dept. has some contacts. They used to check in some game.
I got some info from the county office on people to ask permission from. I work up there and hunt in the area still and some of the land owners are pretty upset with the Wildlife Dept for not giving them more land owner tags and having a higher quota on Antelope. They are causing problems in those areas with tearing up fence eating hay bales.
Always make sure you are following all regulations and make sure you know where you are at all times as far as land owners and DON'T shot from a road, even if you are 5 miles off in the landscape. The Game Wardens are always watching, maybe from a road, oil tank batteries, wind mills. I know them so just follow the regs.
Good luck.
Mike