The clock has run out for an estimated 40,000 illegal gold miners who had until Saturday to legalize their status in a region of southeastern Peru where fortune-seekers have ravaged rainforests and contaminated rivers. The government's vow to enforce a ban on illegal mining is raising fears of bloody confrontations.
Pollution at the closed Columbia Falls aluminum plant qualifies it as a Superfund site, but the...
Montana's largest mining company says its precious metals production rose modestly while...
Halliburton says it was profitable in the first-quarter after reporting a loss for the period a year ago. Its latest results topped Wall Street expectations, and its shares edged up in premarket trading Monday.
After early complaints that out-of-state firms got the most jobs, some local construction trade workers and union members in Pennsylvania, Ohio and West Virginia say they're now benefiting in a big way from the Marcellus and Utica Shale oil and gas boom.
Some Albuquerque leaders are suggesting a site on the city's west side as a location for Tesla Motors' planned new plant to manufacture batteries for its electric cars.
The deadly explosion at a McEwen ammunition plant was accidental, according to a preliminary investigation by the Bureau of Alcohol, Tobacco, Firearms and Explosives.
More than 200 Mossville and Brentwood residents with property close to the Sasol chemical company's Westlake facility have agreed to sell their property to the company as part of a voluntary relocation plan.
Calpine Corp. said Monday that it has agreed to sell six of its power plants to privately-held LS Power Equity Advisors for $1.57 billion.
Canadian company Suncor Energy says an employee has died after being "severely injured" at its oil sands site.
NorthWestern Energy would have to walk away from a $900 million deal to buy 11 hydroelectric dams in Montana if forced to make changes recommended by the state Consumer Counsel, an executive for the South Dakota-based utility said Thursday.
State health officials have ordered a facility in western North Dakota that handles radioactive material to cease operations immediately.
West Virginia is expanding its tourism funding in hopes of offsetting negative publicity from the January chemical spill in the Elk River that spurred a water-use ban for days.
A moment of silence at 7:51 p.m. marked the exact time of the leveling blast in a town that is recovering but still has a long way to go. Photos of the 15 victims were shown on a large screen, including one of the several volunteer firefighters killed.
Montana Gov. Steve Bullock proposed a $45 million grant program Thursday to ease strains on water and sewer systems in eastern Montana towns that have struggled to keep pace with the demands of the fast-growing Bakken oil patch.
A special investigative team of the U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives is looking into an explosion at a Tennessee ammunition plant that killed one person and injured three others.
Minnesota Pipe Line Company plans to ask regulators for approval to nearly double the capacity of a crude oil pipeline that carries oil from Canada and North Dakota to the two refineries in the Twin Cities.
State safety regulators are proposing a $201,000 fine against Sinclair Oil Corp. for violations stemming from a fire last September at the company's refinery in south-central Wyoming.