This bill reauthorizes the Department of Energy's Energy Sector Operational Support for Cyberresilience Program for fiscal years 2027 through 2031, expanding its scope to enhance the collective defense and resilience of the United States energy sector. It mandates strengthening collaboration between the government and the energy sector to analyze, deny, disrupt, and mitigate operational impacts to energy systems. This includes exchanging classified and unclassified threat information, performing collective analysis, and providing recommendations to benefit the broader energy sector. The legislation authorizes the Secretary of Energy to establish an Energy Threat Analysis Center to carry out program activities, facilitating advanced analytics and information sharing. Furthermore, it specifies that assistance and information provided under the program are at the Secretary's sole discretion and do not create a right or benefit for other entities. Importantly, information shared within this program is deemed voluntarily shared, exempt from public disclosure laws like FOIA, and must be withheld from the public.