silhouette of a pumpjack during dusk time

beam beampump big bigtexan bird crude crudeoil dinosaur donkey drill drilling dusk ecology energy environment equipment europe exploration field fuel gas gasoline grasshopper head heavy horse horsehead industrial industry jack jackpump machine machinery nis nodding oil oilfield oiljack oilpump oilwell petroleum pipe pipeline pump pumper pumping pumpjack refinery rig rocking rod rodpump serbia sucking summer sunbeam sunset technology texan thirsty thirstybird time twilight unit vojvodina well working