Oil pumps (nodding donkeys) for sale at oilfield supply merchants, Shelby, Montana, United States of America, North America

A nodding donkey oil pump, Texas, USA

Nodding pincushion (Leucadendron cordifolium), Cape Town, South Africa, Africa

Closely spaced drilling towers and nodding donkey beam pumps, Ramana oilfield, Absheron peninsula, Baku, Azerbaijan, Central Asia, Asia

A nodding donkey oil pump at Kimmeridge Bay, Dorset, England, United Kingdom, Europe

Musk Thistle (Carduus nutans) Bulgaria

Musk Thistle (Carduus nutans) view of developing flower, Bulgaria

Musk Thistle (Carduus nutans) view of developing flower, Bulgaria

Nodding donkey oil pumps pumping oil up from the Daqing oil field in Northern China, Asia

A peasant farmer and his donkey cart in front of nodding donkey oil pumps pumping oil up from the Daqing oil field in Northern China, Asia

Nodding donkey oil pumps pumping oil up from the Daqing oil field in Northern China, Asia

Nodding donkey oil pumps pumping oil up from the Daqing oil field in Northern China, Asia

Nodding donkey oil pumps pumping oil up from the Daqing oil field in Northern China, Asia

Nodding donkey oil pumps pumping oil up from the Daqing oil field in Northern China, Asia

Nodding donkey oil pumps pumping oil up from the Daqing oil field in Northern China, Asia

Nodding donkey oil pumps pumping oil up from the Daqing oil field in Northern China, Asia