Today’s Oil and Gas History Lesson: A different kind of Christmas tree
http://www.pennenergy.com/articles/pennenergy/2015/12/today-s-oil-and-gas-history-lesson-a-different-kind-of-christmas-tree.html?cmpid=EnlWeeklyPetroDecember252015&eid=288268884&bid=1263671
![A Different Kind of Christmas Tree Zchris10](https://i.servimg.com/u/f68/17/64/22/51/zchris10.jpg)
http://www.pennenergy.com/articles/pennenergy/2015/12/today-s-oil-and-gas-history-lesson-a-different-kind-of-christmas-tree.html?cmpid=EnlWeeklyPetroDecember252015&eid=288268884&bid=1263671
![A Different Kind of Christmas Tree Zchris10](https://i.servimg.com/u/f68/17/64/22/51/zchris10.jpg)