Here is a look at the winners and losers in the energy sector from the storm:
Comstock Resources said the last week was "like hitting the jackpot," adding it was able to sell at "super-premium prices" a material amount of production at anywhere from $15 per million cubic feet of gas (mcf) to as much as around $179 per mcf.
EQT Corp said last week that it also benefited from high prices in regions affected by the cold snap. The company mainly produces gas out of the Marcellus and Utica shale regions in Pennsylvania and Ohio.
Australia's Macquarie Group, the second biggest gas marketer in North America after oil major BP, lifted its profit guidance on Monday due to the effects of the extreme winter weather. It expects 2021 profit to rise by 10%, after earlier anticipating earnings to drop.
Other natural gas weighted production companies, including Cabot Oil & Gas, Southwestern Energy Co, Range Resources Corp and Antero Resources, may benefit from the freeze, Morgan Stanley analysts said in a note.
Refiners with limited exposure to Texas markets:
Shares of refiners such as HollyFrontier Corp and Valero Energy Corp rose after the freezing temperatures knocked a large swath of U.S. Gulf Coast refining offline, said Bob Yawger, director of energy futures at Mizuho. Eurozone refiners, including Shell and Total, are positioned to benefit as they ramp up their shipments of gasoline into New York Harbor, he said.
Just Energy on Monday raised doubt about its ability to continue as a going concern, after it forecast a $250 million loss from the Texas winter storms.
Innergex Renewable Energy Inc forecast a financial impact of up to C$60 million on its Texas wind farms.
Algonquin Power & Utilities Corp said on Friday it expects the potential hit to adjusted core earnings for this year to be between $45 million and $55 million after bad weather restricted production at its Renewable Energy Group's Texas-based wind facilities.
Atmos Energy said on Friday it purchased natural gas for an extra $2.5 billion to $3.5 billion due to higher cost of the fuel, adding it was evaluating financing options to pay for the additional purchase cost.
Solaris said on Monday last week's weather would have an impact on first quarter financials, but did not quantify the hit.
Shale oil producers:
Shale oil producers in the southern United States could take at least two weeks to restart the more than 2 million barrels per day of crude output that shut down. Some production may never return, analysts said.
Diamondback Energy said it expects the weather to wipe off up to five days of production in the current quarter.
Cimarex Energy Inc said it expects an up to 7% hit to production volume in the quarter.
Occidental Petroleum forecast first-quarter Permian production of 450,000 barrels of oil equivalent per day to 460,000 boepd, including a 25,000 boepd hit from downtime related to the winter storm.
Laredo Petroleum said its Permian Basin operations were affected for the last 12 days and estimated the combined impact of shut-in production and completions delays to reduce first-quarter total output by about 8,000 boepd and oil production by about 3,000 bpd.
Refiners with oil processing facilities along the Gulf Coast, the main U.S. refining hub, such as Phillips 66 and Exxon Mobil, were forced to halt operations. By Thursday last week, the historic sub-zero temperatures in Texas and Louisiana shut at least 3.5 million barrels per day, or about 19%, of U.S. refining capacity.
(Compiled by Arundhati Sarkar and Arathy S Nair in Bengaluru, Laila Kearney and Devika Krishnakumar in New York and Rod Nickel in Calgary; Editing by Sonya Hepinstall and Arun Koyyur)