The petroleum industry and several big manufacturing companies are warring over whether U.S. regulators should allow a major expansion of liquefied natural-gas exports.

Dow Chemical, Eastman Chemical, Alcoa and others have launched a coalition called “America’s Energy Advantage” to warn against “unfettered” exports, alleging it would harm U.S. manufacturing growth and cost jobs.

The new coalition is calling on the Energy Department to “disregard” a federally commissioned consultant’s recent study that said exporting gas will be a net economic win for the nation, calling it inaccurate.

Energy-thirsty manufacturers have welcomed the U.S. gas production boom and low costs, and fear price spikes if the Energy Department approves a slew of pending applications to export gas from the Gulf Coast, Oregon and elsewhere.