oil

The spill included 10 barrels of oil and 1,500 barrels of industrial salt water left over from oil and gas production. Officials say it's mostly cleaned up.

Investigators looking into the Keystone pipeline oil spill in Kansas found problems in the manufacturing and installation of a pipe that burst last December. Owner TC Energy also knew that the specific piece of the pipeline had been warped for a decade. Plus: The unique role that Kansas City played in McDonald's becoming a fast food giant.

The Keystone was built with extra safety measures, yet it split open under run-of-the-mill pressure levels that less rigorously designed pipelines regularly withstand.

The Canadian operator of the pipeline that burst in Washington County released its summary of an analysis it commissioned on the cause of the oil spill.

Regulators want to know the risks that flawed welding or shifting ground could pose for more breaks on the Keystone, which has spilled repeatedly since 2011.

Trucks are hauling oil-drenched soil to a landfill near Omaha. Crews are building a five-acre pond to continue treating contaminated water.

The Keystone is Washington County's biggest source of property taxes for schools and other local government, but the company didn't pay for 10 years.

The Keystone's biggest spill ever happened on Dec. 7 in Washington County. The cleanup is ongoing.

It’s been almost two months since the Keystone pipeline erupted and crude oil rained down upon several acres of native prairie and cropland, and polluted more than three miles of Mill Creek. Hundreds of workers have been hustling around the clock to recover the oil, but landowners want more information about the cleanup and about why the pipeline broke.

Hundreds of workers have been hustling around the clock to recover the oil. Some landowners want more information about the cleanup and about why the pipeline broke.

Two pipelines, including the Keystone that ruptured on Dec. 7, are the most important local sources of tax revenue for Washington County

Crews continue to remove oil from several miles of Mill Creek that are now blocked off from the rest of the creek. Contamination downstream is decreasing.