Home > Operations > Vendor Information VENDOR INFORMATION SM Energy partners with regional and national oil and gas industry experts. SM Energy Values Partnerships SM Energy recognizes the value of great partnerships within the oil and gas industry. We believe our suppliers are important to our success and actively work to create value and transparency in our supplier partnerships. SM Energy fosters supplier partnerships in line with our core values, which mandate that we conduct business with the highest ethical standards. Not Already An SM Energy Supplier? SM Energy seeks long-term partnerships with suppliers who share values similar to SM Energy. Our Supply Chain Management team works closely with our Regional teams to determine the selection of suppliers who bring the most value to SM Energy. Suppliers who believe they share our values and could bring a value proposition to SM Energy are welcome to provide a summary of their offerings to SMSuppliers@sm-energy.com. If SM Energy believes that additional discussion is warranted we will contact you. NEWS RELEASES EVENTS & PRESENTATIONS LATEST QUARTER SEC FILINGS © 2021 SM ENERGY CORPORATE RESPONSIBILITY REPORT LOOKBEYOND.ORG

SOUTH TEXAS FOCUSED ON EXECUTION AND RETURNS ENHANCEMENT 2021 OPERATING PLAN 2021 PLAN DETAILS • 3Q21: 11 net wells completed and 10 net wells drilled • YTD 3Q21: 19 net wells completed and 26 net wells drilled; full year expectation of 28 wells completed and 32 net wells drilled • ~12,000’ expected average lateral feet per well • ~20% Boe PDP decline expected (YE20 – YE21) MARKETING UPDATE • Transportation costs expected to decrease ~$0.25/Mcf starting July 2021 and decrease an additional ~$0.35/Mcf in mid 2023 AUSTIN CHALK SUCCESS • 2020 Austin Chalk wells have an expected breakeven flat oil price range of $12 – $28/Bbl NYMEX at go forward development capital • Delineation program of 28 wells producing as of the end of the 3Q has indicated Austin Chalk inventory over a broad area OPERATING DETAILS* *as of November 1, 2021 NEWS RELEASES EVENTS & PRESENTATIONS LATEST QUARTER SEC FILINGS © 2021 SM ENERGY CORPORATE RESPONSIBILITY REPORT LOOKBEYOND.ORG

Home > Land Relations LAND RELATIONS Relationships matter to SM Energy. Our company values guide our business practices, and we seek open, honest and transparent relationships with our stakeholders. We strongly believe in treating people the way we want to be treated — fairly and with respect. We strive to maintain accurate records to ensure your royalties and payments are made in accordance with your ownership. Whether you are a royalty owner, working interest partner or surface landowner, we are dedicated to providing you with timely information regarding your accounts with SM Energy. We are honored to be your business partner. Should you have questions, please contact SM Energy at 303-863-4367. LEARN MORE > LEARN MORE > NEWS RELEASES EVENTS & PRESENTATIONS LATEST QUARTER SEC FILINGS © 2021 SM ENERGY CORPORATE RESPONSIBILITY REPORT LOOKBEYOND.ORG