Crossword clues for Petroleum 5 letters:SHALEPetroleum sourceCITGOPetroleum company with a famous sign seen from Fenway ParkAMOCOBig name in petroleumSOHIOBritish Petroleum took majority ownership of it in 1978LOCKECreator of Petroleum V. Nasby.AMOCOIt merged with British Petroleum in 1998OILERPetroleum-carrying shipIRANIOccidental Petroleum CEO RayAMOCOPetroleum companyOILERPetroleum transporterNASBYPetroleum V. ___ (David Ross Locke's pseudonym)AMOCOBritish Petroleum acquisitionSHALEPossible source of petroleumAMOCOBritish Petroleum partnerAMOCOCompany bought by British PetroleumOILERVessel carrying petroleumOILERPetroleum-carrying vesselAMOCOIt merged with British PetroleumNASBYPetroleum V. ___, American humorist.OILERPetroleum tanker.NASBYPetroleum V. ___, Locke's pseudonym.TULSAU.S. petroleum centerAMOCO1999 British Petroleum acquisitionAMOCO1998 British Petroleum acquisitionAMOCOBritish Petroleum acquisition of 1998AMOCOBritish Petroleum merger partnerCRUDEPetroleumAMOCOPetroleum giantLIBYAMajor petroleum exporterAMOCOBig name in petroleum, onceAMOCOFormer petroleum giantAMOCOPetroleum biggieCITGOBritish Petroleum competitorOILERShip carrying petroleumOILERPetroleum shipAMOCOIt merged with British Petroleum in '98SHALERock source of petroleumOILERPetroleum-hauling shipEXXONHalf of a 1999 petroleum-industry mergerICKESPetroleum Coordinator.LOCKEPetroleum V. Nasby.FUELSPetroleum products.PETROLEUMSource of kerosene and paraffinPETROLEUMMajor export of VenezuelaPETROLEUMMajor Wyoming resourcePETROLEUMSine qua non for the wheels of industry.PETROLEUMImportant W. Va. productPETROLEUMWhat's refined to produce gasolineBUDVASELINEAnheuser-Busch brand of petroleum jelly?OILSANDSBituminous petroleum deposits of Alberta