Texas' energy pride sags amid bitter winter cold

The outages in the state also affected power generation in Mexico, with exports of natural gas via pipelines dropping by about 75 percent over the last week, according to preliminary Refinitiv Eikon data.

Texas Governor Greg Abbott directed the state's natural gas providers not to ship outside Texas and asked state regulators to enforce that ban.

Abbott said on Wednesday that "every source of power Texas has, has been compromised", from coal and renewable energy to the state's two nuclear power plants.