"A little-known company called Halek Operating ND LLC is facing the largest fine North Dakota has ever levied against an oil and gas producer -- $1.5 million -- for jeopardizing drinking water near Dickinson."

"Drought, heavy rain increase amount of chemical in rivers."

"Federal environmental officials have completed part of a massive cleanup of lead from Omaha properties that began 15 years ago."

"The Ogallala Aquifer suffered its second-worst drop since at least 2000 in a large swath of the Texas Panhandle, new measurements show."

"WATFORD CITY, North Dakota -- In towns across North Dakota, the wellhead of the North American energy boom, the locals have taken to quoting the adage: 'Whiskey is for drinking, and water is for fighting.'"

"HASKELL COUNTY, Kan. — Forty-nine years ago, Ashley Yost’s grandfather sank a well deep into a half-mile square of rich Kansas farmland. He struck an artery of water so prodigious that he could pump 1,600 gallons to the surface every minute."

"Exxon Mobil Corp's near 70-year-old Pegasus oil pipeline leaked a small amount of crude into a residential yard in Ripley County, Missouri on Tuesday, a month after the same pipe spewed thousands of barrels of crude in Arkansas."

"Flood-weary residents of North Dakota bracing for a possible record inundation got their first touch of good news on Wednesday when officials said the swollen Red River would crest at lower than anticipated levels next week."

"Debra White Plume and Marie Brush Breaker Randall stood in the middle of Highway 44, alongside more than 70 other members of the Oglala Lakota Nation. For hours, they didn't budge -- much to the chagrin of some tractor-trailer drivers bound for the tar sands region of Alberta, Canada."