A pumpjack (nodding donkey, pumping unit, horsehead pump, rocking horse, beam pump, sucker rod pump (SRP), grasshopper pump, thirsty bird, jack pump, popping johnny) is the overground drive for a reciprocating piston pump in an oil well.

It is used to mechanically lift liquid out of the well if there is not enough bottom hole pressure for the liquid to flow all the way to the surface. The arrangement is commonly used for onshore wells producing little oil. Pumpjacks are common in oil-rich areas.

Depending on the size of the pump, it generally produces 5 to 40 litres of liquid at each stroke. Often this is an emulsion of crude oil and water. Pump size is also determined by the depth and weight of the oil to remove, with deeper extraction requiring more power to move the heavier lengths of sucker rods.

A pumpjack converts the rotary mechanism of the motor to a vertical reciprocating motion to drive the pump shaft, and is exhibited in the characteristic nodding motion. The engineering term for this type of mechanism is a walking beam. It was often employed in stationary and marine steam engine designs in the 18th and 19th centuries.

Toby Keith Covel (born July 8, 1961) best known as Toby Keith, is an American country music singer-songwriter, record producer and actor. Keith released his first four studio albums — 1993's Toby Keith, 1994's Boomtown, 1996's Blue Moon and 1997's Dream Walkin', plus a Greatest Hits package for various divisions of Mercury Records before leaving Mercury in 1998. These albums all earned gold or higher certification, and produced several chart singles, including his debut "Should've Been a Cowboy", which topped the country charts and was the most played country song of the 1990s. The song has received three million spins since then, according to Broadcast Music Incorporated.

Signed to Nashville DreamWorks in 1998, Keith released his breakthrough single "How Do You Like Me Now?!" that year. This song, the title track to his 1999 album of the same name, was the Number One country song of 2000, and one of several chart-toppers during his tenure on DreamWorks Nashville. His next three albums, Pull My Chain, Unleashed, and Shock'n Y'all, produced three more Number Ones each, and all of the albums were certified multi-platinum. A second Greatest Hits package followed in 2004, and after that, he released Honkytonk University.