Costco Wholesale Corp.

From equipment to fuel procurement, big-box retailers could face high-stakes challenges.

Hypermarket competition in the Pacific Northwest adds to factors creating toughest U.S. market.

Both retail chains plan on adding gas stations to hundreds of stores next year.

Agreement allows company to continue purchasing goods and services, pay employee salaries and benefits and fund ongoing operations.

Bankruptcy filing seen as "a strategic move" for the Midwest operator.

But HVR penetration will fall well below forecasts, says Lundberg

California ARCO operator accused of trademark infringement for accepting savings club discount

Shell's rebranding efforts in full swing in Houston, Dallas, Colorado and Tennessee.