| oil pressure relief valve | Ölüberdruckventil |
| oil pressure sending unit | Öldruckgeber |
| oil pressure sending unit socket | Öldruckgeberschlüssel |
| oil pressure sensor | Öldruckgeber |
| oil pressure switch | Öldruckanzeiger |
| oil pressure switches | Öldruckschalter |
| oil pressure transmitter | Öldruckgeber |
| oil pressure warning | Öldruckkontrolle |
| oil pressure warning light | Öldruckwarnlampe |
| oil pressure warning switch | Öldruckwarnschalter |
| oil price | Erdölpreis |
| oil prices | Ölpreise |
| oil producers' cartel | Erdölkartell |
| oil producers' cartels | Erdölkartelle |
| oil producing countries | Erdölerzeugerländer |
| oil producing country | Erdölerzeugerland |
| oil producing formation | Erdölfeld |
| oil producing formations | Erdölfelder |
| oil production | Ölförderung |
| oil production) | Rohstoffvorkommen durch Bohrung erschließen (Bergbau |
| oil prospector | Ölsucher |
| oil pulling | Ölkur |
| oil pump | Ölpumpe |
| oil pump body | Ölpumpengehäuse |
| oil pump casing | Ölpumpengehäuse |
| oil pump cover | Ölpumpenabdeckung |
| oil pump drive | Ölpumpenantrieb |
| oil pump drive chain | Ölpumpenantriebskette |
| oil pump drive gear | Ölpumpenantrieb |
| oil pump drive sprocket | Ölpumpenantriebsritzel |
| oil pump housing | Ölpumpengehäuse |
| oil pumps | Ölpumpen |
| Oil quality | Öl |
| oil rail | Stahllamelle |
| oil recovery | Ölrückgewinnung |
| oil recovery vessel | Ölauffangschiff |
| oil refineries | Ölraffinerien |
| oil refinery | Ölraffinerie |
| Oil refining | Erdölraffinerie |
| oil regulating vale | Ölregelventil |
| oil regulation | Ölregulierung |
| oil remover | Ölentferner |
| oil repellency | ölabweisende Eigenschaft |
| oil repellent | Öl abweisend |
| oil requirement | Erdölbedarf |
| oil research | Erdölsuche |
| oil reserve | Ölreserve |
| Oil reserves | Ölvorkommen |
| oil reservoir | Ölbehälter |
| oil reservoir steam flooding | Lagerstättenbedampfung |
| oil reservoir, oil container | Ölbehälter |
| oil residue | Ölrückstand |
| oil residue recuperation | Ölrückstandswiederaufarbeitung |
| oil residues | Ölrückstände |
| oil resources | Erdölvorräte |
| oil retainer | Öldichtung |
| oil retainer ring | Dichtungsring für Öl |
| oil return hose | Ölrücklaufschlauch |
| oil return line | Ölrücklaufleitung |
| oil return pipe | Ölrücklaufrohr |
| oil return tube | Ölrücklaufrohr |
| oil rig | Bohrturm |
| oil rigs | Bohrplattformen |
| oil ring | Ölabstreifer |
| oil rings | Ölabstreifer |
| Oil Rocks | Neft Daşları |
| oil rubber | Ölstein |
| oil s.b.'s palm | jdn. bestechen |
