Excerpts from this story referencing "crude oil":
"… partment of Natural Resources. Natural gas filtered into the aquifer, and crude oil floated to the top of the sinkhole, about a third of a mile from the neare …"
"… fficials feared explosion hazards and “potentially toxic constituents of crude oil and other hydrocarbons,” though the state said continuous monitoring has …"
"… ad created a pathway to the nearby groundwater aquifer and the surface for crude oil and natural gas which had been confined in a hydrocarbon-bearing layer,” …"
"… hed the lower explosive limits,” Louisiana officials say. Concerned that crude oil and saltwater could spread to surface waters, the state ordered a containm …"