Mr. TERRY O'CONNOR (Oil Shale Program, Shell Oil Company): It's called the in-situ conversion process or the acronym, ICP.

NPR: Industry Seeks to Extract Oil from Rocky Mountain Shale

Donal O'Sullivan, general manager of Haggerston Castle, said investigations were continuing to determine exactly why type of shell the bomb was.

BBC: NEWS | UK | England | Tyne | War artefact uncovered by workers