While primary production refers to oil that is recovered naturally ... line of production wells is followed by a similar line of water-injection wells, and so on. In an edge waterflood, water ...

Environmental group leaders have also expressed concerns about the adequacy of regulatory oversight for carbon dioxide injection ... the air less during oil and gas production.

The oil production is so frenzied that huge swaths ... The constant extraction and injection of liquids has wrought complex ...

Kazakhstan's oil production reached a record high of 2 million barrels per day following the start-up of Chevron's expansion project at the Tengiz oilfield.

Environmentalists are worried the state — known for a lax approach to regulation — is not prepared for the added ...