El Dorado Mine | Winkler County, Texas ADDRESS: 4529 E State Highway 302 Kermit, TX 79745 COORDINATES: 31.841891, -102.970587 Named for the Lost City of Gold, the El Dorado Mine boasts nearly 200MM tons of high-quality Winkler White®. The El Dorado name was chosen by the former landowners who recognized the value that these sand deposits would bring to producers throughout the Delaware and Midland Basins. As Black Mountain Sand’s second frac sand plant, this vision is being transformed into a reality. El Dorado Data Sheet Available Products: WINKLER WHITE® FRAC SAND NOW SERVING THE PERMIAN BASIN 0 Tons of vertical storage 0 Dedicated truck loadouts <0 Minutes gate-to-gate truck load time Contact Us (817) 529-0015 420 Commerce Street, Suite 500 Fort Worth, TX 76102 From Our Blog Black Mountain Sand Mine Hits Safety Milestone January 22, 2021 Top 10 Oil And Gas Podcasts To Follow in 2021 December 28, 2020 In-Basin Frac Sand Black Mountain Sand is an in-basin frac sand provider delivering superior products and solutions to the E&P industry with both 40/70 and 100 mesh frac sand mining capabilities. ©2021 Black Mountain Sand. All rights reserved.

Superior In-Basin Frac Sand Solutions Black Mountain Sand delivers superior in-basin frac sand solutions to companies in the Exploration & Production (E&P) industry. Our two flagship facilities, Vest and El Dorado, boast a combined 10 million annual tons of nameplate capacity in the Permian Basin alone. We’ve expanded our operations with three new facilities in the Eagle Ford Shale and Oklahoma’s Mid-Continent region. With annual production capacity at 17 million tons and delivering to three distinct hydrocarbon-producing regions, Black Mountain Sand is the premier in-basin sand supplier in the nation. Our combined annual production capacity equals 14 percent of total estimated frac sand demand in 2020. In partnership with Natural Gas Partners (NGP), we are focused on developing mining facilities that are not only best in class, but good neighbors too. Notable investments include: Research funding and dedicated conservation easement to help protect Dune Sagebrush Lizard habitat A water recycling system that reclaims and reuses up to 98% of the water used in our mining process Public road improvements to help mitigate traffic congestion at our mine entrances and improve safety QUICK FACTS Across All Facilities 0 Annual Tons of Mine Capacity 0 Tons of Vertical Storage 0+ Total Employees <0 Minutes Gate-To-Gate Truck Load Time 0 Dedicated Truck Loadouts 0 Minutes to Load 23 Tons into a Truck Contact Us (817) 529-0015 420 Commerce Street, Suite 500 Fort Worth, TX 76102 From Our Blog Black Mountain Sand Mine Hits Safety Milestone January 22, 2021 Top 10 Oil And Gas Podcasts To Follow in 2021 December 28, 2020 In-Basin Frac Sand Black Mountain Sand is an in-basin frac sand provider delivering superior products and solutions to the E&P industry with both 40/70 and 100 mesh frac sand mining capabilities. ©2021 Black Mountain Sand. All rights reserved.