BP (BP -1.18%) just announced it is getting out of the wind power game, and in fact big oil's green energy initiatives are pretty negligible at this point. It could be disheartening state of affairs, but luckily pipeline companies are stepping in and picking up the slack. In this video, Fool.com contributor Aimee Duffy explores Enbridge's (ENB -0.07%) recent deal to buy into a wind project in Alberta, and reviews the alternative energy efforts already under way in the North American midstream industry.