- prompt
- prospecting
- prospecting hammer
- propellant
- propeller
- propeller shaft
- proportional control
- proportioning pump
- propped
- propping
- propulsion
- propylitization
- propynoic
- prospecting trench
- prospective acreage
- protamine
- protection lease
- protective atmosphere
- protective clothing
- protective coating
- Proterozoic era
- protest strike
- protoclase
- protoclastic structure
- protolysis
- protoparaffin
- protopetroleum
- protore
- proved ore
- proven
- province
- provision
- proximate analysis
- proximity fuse
- prussian blue
- prussiate
- psammitic limestone
- psammitic texture
- psephitic texture
- pseudo-base
- pseudo-cleavage
- pseudo-moraine
- pseudo-salt
- pseudo-solution
- pseudo-urea
- pseudobrockite
- pseudomorph
- pseudomorphism
- pseudophide
- pseudoplastic fluid
- pseudowavellite
- psychozoic era
- psychrometer
- pteropod ooze
- pterygota
- ptygmatic structure
- protective action
- protective tariff
- protest
- proton
- protrusion
- proved
- proved reserves
- proven reserve
- proven structure
- proving tank
- proxi-mineral
- proximity log
- psephicity
- pseudo breccia
- pseudo-alum
- pseudo-equilibrium
- pseudoagglutination
- pseudobomb
- pseudocrystalline
- pseudofossil
- pseudophenocryst
- pseudoplasticity
- pseudoschistosity
- pseudosonic profile
- pseudotachylyte
- public land
- puckering
- pudding grease
- puddle
- puddle ball
- puddled steel
- puddling
- puddling furnace
- puff
- puff cone
- pug
- pull rod
- pull-line
- puller
- pulley ratio
- pulling suction
- pulling unit
- pulling well
- pulsating spring