A History of Value Creation Atlas has provided repeated substantial returns over the years in each of its various stages of growth and development Learn More Previous Next Atlas Energy is an energy management company focused on the development and growth of energy enterprises. Atlas Energy Group, LLC is a master limited partnership (MLP) that acquires and develops upstream and midstream oil & gas assets, which provide consistent and reliable returns for their investors. Atlas Energy has outperformed its peers by pursuing diversified investment opportunities with the potential for high-growth, high-yield returns. Featured News View all News Atlas Energy has diversified investment opportunities that provide high yield returns. Featured Content OTCQX: ATLS K-1 Tax Form Access Your K-1 Tax Information Investor Login Investor Relations Careers News & Events © Copyright 2021 Atlas Energy. All rights reserved.

About Us Atlas Energy Group, LLC (“Atlas Energy” – OTCQX: ATLS) is a publicly-traded master limited partnership (“MLP”). Atlas Energy owns the following assets and investment interests: 100% of Titan Energy Management, which owns a 2% preferred member interest in Titan Energy, LLC, an exploration and production company. 80% general partner interest and incentive distribution rights, as well as an 8% limited partner interest in Atlas Growth Partners, L.P. 16% general partner interest and 12% limited partner interest in Lightfoot Capital Partners, which invests directly in energy-related businesses and assets. Lightfoot has approximately 27% limited partner interest in Arc Logistics Partners LP (NYSE: ARCX), an independent U.S.-based energy logistics service provider Contact Us Careers Atlas has a performance driven and team-based culture where employee input is valued and our employees are committed to our core values. Visit Our Career Site FAQs View All Contact Us If you are a current or prospective investor in Atlas Energy Group, LLC looking for more information on our company, please contact: ATLS Unitholder Investor Relations 1845 Walnut Street, Suite 1000 Philadelphia, PA 19103  Phone 1-877-280-2857 investorrelations@atlasenergy.com If you are a current investor in Atlas Energy Group, LLC who wants to replace a lost stock certificate, transfer units or change your address, please contact our transfer agent: Broadridge Corporate Issuer Solutions, Inc. P.O. Box 1342 Brentwood, NY 11717 Phone: 855-449-0975 http://www.broadridge.com © Copyright 2021 Atlas Energy. All rights reserved.

News & Events Press Releases May 01, 2020 – Atlas Energy Group, LLC completes exchange with lender View All Upcoming Events There are no events scheduled at this time. View All © Copyright 2021 Atlas Energy. All rights reserved.