The debate over tighter controls on gas output in the Southwest has bitterly divided the industry.

But blanket restrictions on gas output to bolster prices is illegal, they said.

Most companies sell two-thirds or more of their gas output in delivery contracts averaging 30 days or less.

The amount of natural gas output lost because of the storm was unclear.

The independents, which include 10,000 individuals, partnerships and companies, contributed about 60 percent of natural gas output last year.

Together, the three contracts are expected to raise Mexico's natural gas output by 350 million feet a day.

Humans have very little greenhouse gas output compared to, say, all the volcano output.

It is attractive because it has a high gas output and low flame temperature.

And they struck enough to more than triple his gas output and allow him to emerge from bankruptcy in 1987.

"So measuring the gas output is a crummy way of figuring out how much plutonium they have produced."