WaPo has an interesting series on the Nature Conservancy. From "How a Bid to Save a Species Came to Grief":

Mobil officials said that the donation [of a parcel of land near Houston] offered "the last best hope" of saving the Attwater's prairie chicken, a speckled grouse whose high-stepping mating dance attracts avid bird watchers to the Texas plains each spring.

Then an unusual role reversal took place.

The Conservancy, whose core mission is preserving land to protect species such as the prairie chicken, started acting like an oil company. The Conservancy sank a well under the bird's nesting ground.

They also killed a few of the prairie chickens along the way. And, they drilled someone else's gas, and then tried to buy their gas rights using a front...

After The Post began examining the Texas City project, Conservancy President McCormick issued a memo to staffers and state trustees describing "tactics" used at the preserve as "not consistent with our values."

Render unto J.R., etc. etc.