An Arizona-based company plans to build a 22-megawatt solar plant in West Texas. When it's up and running — officials say the plant could be online as soon as June — it will rank among the state's largest.

Despite critics' calls for more scrutiny, federal pipeline regulators say they see no reason to delay activating the Oklahoma-to-Texas leg of the controversial Keystone XL pipeline, which is set to be turned on next week. 

The Texas Oil and Gas Association, the state’s largest and oldest petroleum organization, has told regulators it opposes an overhaul of the wholesale energy market. 

The Houston City Council on Wednesday approved changes to its building code requiring that new homes be more energy efficient. 

The Texas Railroad Commission said it would hire a seismologist to research the link between earthquakes and disposal of oil and gas waste in injection wells.

As a deep chill grips much of Texas, the state's electric grid operator is asking consumers to reduce their energy use, though a brief threat of rolling blackouts has been averted. 

The EPA correctly followed protocol when it accused a Fort Worth-based driller of contaminating two Parker County water wells, the agency's internal watchdog says in a new report.  

Oil and gas production, pipelines, the Railroad Commission and questions about Texas’ energy grid all grabbed headlines in 2013.

Since exploration and production of oil and gas in shale regions began surging around 2007, foreign companies have poured billions into mergers with American energy companies. 

Some counties are happier than others after the Texas Department of Transportation released estimates of state aid to help fix roads damaged amid the state's oil and gas boom. 

A West Texas utility company and a coalition of neighborhood activists have reached an agreement that paves the way for the construction of a natural gas power plant in far east El Paso County. 

Natural gas is gaining a toehold in Texas’ transportation sector, as state policy and simple economics incentivize large organizations to buy vehicles that run on it. 

At a contentious hearing on Monday, lawmakers expressed skepticism about transforming Texas' wholesale energy market in an attempt to ensure the long-term reliability of the state's electric grid.

As the drought continues across Texas, more oil and gas companies are considering the long-term benefits of water recycling, and state officials are trying to make the transition easier.

Microsoft's director of energy strategy on the company's big investment in Texas wind, the expiring federal renewable energy tax credit and the debate over whether Texas should transform its energy market. 

Former state Rep. Wayne Christian, R-Center, a candidate for the Texas Railroad Commission, introduces himself in a new ad. 

A consumer advocacy group says it has documented at least 125 possible anomalies across a 250-mile stretch of the Keystone XL pipeline, raising questions about the integrity of a project that traverses more than 600 Texas rivers and streams. 

Steve Brown, a former legislative aide and past chairman of the Fort Bend County Democrats, is the first Democrat to enter the race for railroad commissioner.