Some fires were in burning oil Wells. Others were in natural gas Wells.

有些是油井大火，有些是天然气井大火。

youdao

Red Adair developed modern methods to extinguish and cover burning oil wells.

VOA: special.2009.03.22

Some fires were in burning oil wells.

VOA: special.2009.03.22

Siberia is ablaze with the surplus gas from oil wells just burning off into the sky, adding to Russia's pollution problem.

ECONOMIST: Reforming Russia's gas behemoth

It was seen as a spectacular Italian coup when Eni became operational leader, but the thanks to a poor infrastructure for exploration in the northern Caspian sea, costly regulations about the burning off of gas at oil wells, and the rising costs of oil extraction, production was slowed and costs overrun.

FORBES: Magazine Article

U.S. Defense Secretary Donald Rumsfeld said "as many as three or four" oil wells may be burning on the Iraqi side of the Iraq-Kuwait border.

CNN: marines.bunker