A fire department pumping engine of generally 1,000 gallons per minute rated capacity and carrying hose and other firefighting equipment. Also a pumper company.
In most cases, a pumper carries small ground ladders, supply line to connect it with a hydrant, hand lines to fight the fire with and a tank holding between 500 and 1,000 gallons of water. Same as an Engine.
An employee of an operator who is responsible for gauging the oil and gas sold off the leases he has been assigned and who is also responsible for maintaining and reporting the daily production.