Quote: No, gas comes from refineries. The crude oil it is made from comes from the ground. And it is fine so long as it stays the hundreds of feet below the ground. On the surface, not so much (just ask Exxon or BP). Both are toxic to animals and neither can be made non-toxic. As for pouring it in the ground near or in the coop, I wouldn't. Use a killer or better yet a repellent that is tested and certified as safe around pets and livestock.