Panel studies impact of wind turbines, transmission lines on lesser prairie chicken habitat

Okla. panel studies lesser prairie chicken habitat

Amtrak starts yearlong test of beef-based biodiesel on passenger line between Oklahoma, Texas

Cattle-based fuel runs Okla.-Texas passenger train

Down year for biofuels ends badly; tax credit for biodiesel producers expires

Bad year for biofuel ends on a dour note

OKLAHOMA CITY — An alternative fuel for diesel engines is off to a shaky start this year though it emits fewer pollutants and cuts down on petroleum use because it’s made from environmentally friendly waste and vegetable oil.