Group 1 - A cold spell in the United States has led to a drop in oil production of up to 2 million barrels daily, with the Permian region experiencing outages of around 1.5 million barrels daily initially, which has since decreased to 700,000 barrels daily [1][2] - Natural gas production in the southern central U.S. corridor has reportedly dropped by 22%, potentially resulting in an oil production decline of 1 million barrels daily in that region [2] - Companies such as Exxon, Occidental, Chevron, and ConocoPhillips have reported production issues, with Conoco's oil production down by 175,000 barrels daily in the Permian [3] Group 2 - Natural gas production in the Lower 48 states has decreased to 106.9 billion cubic feet daily, compared to an all-time high of 109.7 billion cubic feet daily for December [4] - The disruption in gas production has caused a significant surge in gas prices, which increased by 70% over the past week, impacting the global LNG market due to the U.S.'s dominant role [5]