In 2015, I was drawn for the Elephant Mountain rifle hunt so I thought I could add a bit of thought to the logistics of the hunt as charrison did. I spent the last decade hunting a very large ranch that is immediately east of EM and extends down about a 1/3 of the way to BG. That was hunting from a camp house, but it gave me a good idea of what to expect went tent hunting the country.
I took 24 gallons of water, gave a little to other hunters and didn't have much left. I have an ice machine here at the ranch, my home, and I took two large boat coolers full of it. I did have enough to ice down my deer at the end of four days.
As charrison noted, if you want a fire, take some oak or mesquite with you. What you will be able to pick up is nothing more than kindling. This country is mounds and saddles really, and at night the wind will blow through those saddles typically east to west. Might keep that in mind with any fire vs. your camp.
My hunt was mid-December, and there was about a 45° swing in temperature each day from the mid-20s to above 70. Funny, but after spending all night below freezing, that 70s is sweltering. When I set up, I moved the picnic table out from under the fixed awning and placed my tent under it. I found an awning that was oriented east/west and completely surrounded by brush (for a windbreak) as I figured the wind would flow through the saddle the campground was in, it did. I wish I had taken a second tarp, the first being used as a ground tarp to protect the floor of the tent because the ground is small sharp stones. I would have liked a second tarp to secure to the poles of the awing on the backside of my tent. That would have really helped break the wind at night.
When the sun starts to set, if there is a ridge to the west, the lights will go out as if on a switch. I thought I had given my arrival time enough to be fully setup at dark, but I missed it by about 30 minutes. It was tough getting everything sorted out in that black hole of a camp. I actually could not find my tent heater and about 2 in the morning thought I was going to freeze, it was 25°, with the wind blowing a good lick. I didn't want to sit in my truck as you must think about fuel as well. I ended up taking the survival blanket out of my pack and wrapping my bedding with it. I sure was glad to see the sunrise. All my water was frozen. The following nights were with the tent heater running and water can sitting in the tent. The heater kept the temperature well above freezing and made the sleeping very comfortable.
The first night also found me in a sounder of javelina all night. The kept trying to push through the walls of my tent, and I kicked several in the snout. The next day, I peed in a jug all day and put a ring of urine around my camp each day, didn't have any more intruders and that included the raccoons that had tried to raid the stores in my lockers while handling my pots and pans.
I took 15 gallons of gas in three cans. My hunt unit was 11 miles long, that is a bit over 1 gallon of gas in my Dodge 2500. I filled my truck up before heading down to the WMA, about 40 miles, and then kept one 5 gallon can in reserve for my return to town. I probably moved across my unit three times a day changing my glassing positions and ended up sharing some gas, but it never became a worry. If drawn again, I would still take the three cans.
Finally, I shot a lot in prep for the hunt. I have a 300-yard range behind my house and shot several times the week before the hunt and 60 to 65 rounds the day before I left. Just something I believe in doing when given an opportunity like this. It paid off with the only opportunity I had for a mature mule deer, a 197-yard offhand shot. I had seconds to evaluate the deer, and the bullet was downrange before the shot could be lost. My deer was on a "hit list" that the staff had not shared with us so they were very happy to see the 7 1/2-year-old on the ground.
Good luck with your hunt, I kind of figure these are a once in a lifetime event given the odds of the draw.