ABOUT OPERATIONS OWNER/VENDOR RELATIONS CAREERS CONTACT Legacy Reserves Inc. is an independent energy company engaged in the development, production and acquisition of oil and natural gas properties in the United States. Its current operations are focused on the horizontal development of unconventional plays in the Permian Basin and the cost-efficient management of shallow-decline oil and natural gas wells in the Permian Basin, East Texas, Rocky Mountain and Mid-Continent regions. Key Statistics 2020 Production 38.2 MBoe/d Proved Reserves 87 MMBoe Permian Basin East Texas Rocky Mountain Mid-Continent © 2021 Legacy Reserves - All rights reserved. | Site by Houston Web Design and Hosting, Inc.

ABOUT OPERATIONS OWNER/VENDOR RELATIONS CAREERS CONTACT Vendor Inquiries Update - We are no longer utilizing Oildex, and now offer Cortex to our vendors who prefer to submit invoices electronically. To enroll and submit your invoices online through Cortex Please call Cortex at (866)716-6272 or email at orderdesk@cortex.net If you are a current Cortex user and are having trouble submitting/viewing your invoices, contact Cortex at (866) 716-6272 To update vendor account information To change your mailing or remittance address, please email, fax, or mail us this request. Please include company name, vendor number, previous address, and updated address. We do not accept address changes by phone. To sign up for direct deposit or update your banking information, click link below and print off form & submit by mail, email, or fax. ACH/EFT Signup Form To view electronic payment detail, please follow the link below. Legacy Reserves/JC Data Document Viewer If you’re having trouble logging into or using JC Data, call (855) 223-7447 or email them at callen@JCdata.com Contact Us 15 Smith Road, Suite 3000 Midland, TX 79705 Contact email vendor@legacyreserves.com Number 855-223-7447 Fax number 432-221-6397 Other questions for the Vendor Inquiries can be submitted through the form below. Vendor Inquiries Form Fields marked with an * are required. Name* First Last Email* Subject* Comments* Key Statistics 2020 Production 38.2 MBoe/d Proved Reserves 87 MMBoe © 2021 Legacy Reserves - All rights reserved. | Site by Houston Web Design and Hosting, Inc.

ABOUT OPERATIONS OWNER/VENDOR RELATIONS CAREERS CONTACT East Texas Operations We entered the East Texas region through our July 2015 acquisitions in Anderson, Freestone, Houston, Leon, Limestone and Robertson counties. The properties in East Texas consist of mature, low-decline natural gas wells. The East Texas properties are supported by a 601 mile natural gas gathering system and plant we acquired as part of those acquisitions. Permian Basin East Texas Rocky Mountain Mid-Continent © 2021 Legacy Reserves - All rights reserved. | Site by Houston Web Design and Hosting, Inc.