heard that about 20 plus years from some one. hof gotten who. i know alot about wells and drilling. i learn alot from my father. i had a brother who died in war about 40 years ago who was going follow in my father shoes. he was jet man. he had 4 years to serve active and 3 non active. he only last 2 years. he was flier on flat top. that was real hard on my dad was came to house to tell him he was missing in action. after the war, his body came home.