Really sorry to hear this, Mr. oldandslow.
Glad you're okay, but I've been through one of those before ... and I never want to do that again. All you can do is try to get some rest and start counting blessings ... they're all over the place ... just look.
Oh, and call an attorney Monday morning. The gas company will likely settle for a sum that will make you feel better and let you purchase some new saplings. Just make sure your lawyer is a real asshole when he needs to be.