I'll agree with bigbull, as you know, we went through this last year. I know what your going through, as does nearly everyone else in Texas. Cull hard if she didn't calve, shes gone, if shes gettn old, shes gone, if she looks at you crossways in the pen, shes gone. You have limited resources as it is and you shur as he!! can't afford to be feeding old or open cattle. Stretch that hay as far as you can. I wouldn't start feeding it until I absolutely had to. Supplement with tubs and range meal and feed as little hay as possible. Try to make it to winter before you really have to start feeding what little hay you have. Your're gonna have to sell the calves earlier than you normally would to give the cows a break also youll have trouble gettn em to breed back if they are thin. I know you don't want to hear this but I fought it all summer and gave up in September as I was out of hay and had no grass also all of the tanks were dry and I had been watering with community water all summer (expensive, cows drink alot of water in the summer). I sold the calves about 300 lbs lighter than normal then 2 months later sold the cows. Cows are now selling higher than a girrafes AZZ and I could only buy back about half of what i sold. Hang in there maybe youll get a rain.