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| DIVERSIFIED ENERGY COMPANY PLC INTEREST SUMMARY PROJECTION OF RESERVES AND REVENUE AS OF DECEMBER 31, 2022 TOTAL PROVED RESERVES SUMMARY - CERTAIN PROPERTIES LOCATED IN THE APPALACHIAN BASIN AND THE LOUISIANA-OKLAHOMA-TEXAS AREA OF THE UNITED STATES All estimates and exhibits herein are part of this NSAI report and are subject to its parameters and conditions. BASED ON SEC PRICE AND COST PARAMETERS PERIOD ENDING M-D-Y 12-31-2023 12-31-2024 12-31-2025 12-31-2026 12-31-2027 12-31-2028 12-31-2029 12-31-2030 12-31-2031 12-31-2032 12-31-2033 12-31-2034 12-31-2035 12-31-2036 12-31-2037 SUBTOTAL REMAINING TOTAL CUM PROD ULTIMATE GROSS RESERVES OIL/COND MBBL 6,181.3 5,070.2 4,377.0 3,872.3 3,478.6 3,156.2 2,885.3 2,653.5 2,453.8 2,274.1 2,114.0 1,968.1 1,833.4 1,708.6 1,594.3 45,620.9 19,320.8 64,941.7 528,257.1 593,198.8 GAS MMCF 584,386.1 518,796.8 466,229.0 428,397.6 397,523.8 371,016.0 347,966.8 327,424.5 308,705.3 291,569.6 275,687.2 260,899.2 247,122.4 234,157.8 221,932.6 5,281,814.7 3,396,834.1 8,678,648.8 28,851,141.8 37,529,790.6 NET RESERVES OIL/COND MBBL 1,237.0 1,048.1 927.6 836.5 763.2 701.6 648.4 602.2 561.1 523.3 488.8 457.4 428.4 401.1 375.8 10,000.5 4,829.1 14,829.5 NGL MBBL 5,221.1 4,879.1 4,597.2 4,351.2 4,131.0 3,930.1 3,746.1 3,575.3 3,415.0 3,264.7 3,122.4 2,987.7 2,860.0 2,737.6 2,620.9 55,439.5 46,491.2 101,930.7 GAS MMCF 245,860.3 226,245.0 210,284.0 197,140.7 185,727.2 175,608.9 166,476.2 158,103.1 150,346.2 143,113.3 136,323.7 129,911.0 123,840.8 118,075.0 112,595.7 2,479,651.2 1,869,959.5 4,349,610.7 EQUIV MBOE 47,434.8 43,634.7 40,572.2 38,044.4 35,848.7 33,899.8 32,140.6 30,528.0 29,033.8 27,640.2 26,331.8 25,096.9 23,928.6 22,817.9 21,762.7 478,715.1 362,980.2 841,695.3 AVERAGE PRICES OIL/COND $/BBL 94.49 94.34 94.24 94.17 94.12 94.07 94.04 94.01 93.99 93.97 93.95 93.94 93.92 93.92 93.91 94.13 93.74 94.01 NGL $/BBL 42.84 42.94 43.01 43.08 43.14 43.20 43.25 43.30 43.35 43.40 43.44 43.49 43.53 43.58 43.63 43.21 44.47 43.68 GAS $/MCF 6.153 6.170 6.185 6.196 6.206 6.215 6.223 6.231 6.238 6.245 6.251 6.258 6.265 6.272 6.279 6.217 6.391 6.292 GROSS REVENUE OIL/COND M$ 116,881.3 98,878.3 87,424.2 78,770.6 71,832.7 65,997.1 60,978.1 56,610.9 52,737.5 49,169.8 45,924.4 42,967.2 40,236.8 37,670.5 35,288.5 941,367.8 452,693.2 1,394,061.0 NGL M$ 213,203.5 199,147.5 187,564.5 177,472.1 168,448.1 160,223.5 152,692.1 145,701.9 139,148.1 132,999.0 127,177.2 121,668.3 116,450.8 111,450.0 106,682.1 2,260,028.4 1,887,349.3 4,147,377.7 GAS M$ 1,483,179.5 1,367,363.8 1,272,913.8 1,194,825.0 1,126,875.5 1,066,544.4 1,012,020.1 961,948.2 915,503.8 872,150.6 831,402.7 792,954.2 756,505.8 721,858.6 688,931.8 15,064,977.9 11,593,939.5 26,658,917.4 TOTAL M$ 1,812,391.5 1,663,896.7 1,545,951.2 1,449,020.1 1,365,198.8 1,290,893.6 1,223,901.2 1,162,550.7 1,105,754.3 1,052,756.2 1,003,009.9 956,161.0 911,827.7 869,673.5 829,654.3 18,242,640.6 13,912,476.5 32,155,117.1 PERIOD ENDING M-D-Y 12-31-2023 12-31-2024 12-31-2025 12-31-2026 12-31-2027 12-31-2028 12-31-2029 12-31-2030 12-31-2031 12-31-2032 12-31-2033 12-31-2034 12-31-2035 12-31-2036 12-31-2037 SUBTOTAL REMAINING TOTAL OF 50.0 YRS NUMBER OF ACTIVE COMPLETIONS GROSS 53,579 53,072 52,554 52,017 51,475 50,923 50,394 49,814 49,261 48,667 48,005 47,356 46,730 46,070 45,369 NET 45,093.6 44,725.8 44,345.4 43,940.6 43,532.3 43,110.6 42,693.6 42,253.2 41,811.0 41,352.0 40,833.8 40,333.8 39,830.0 39,325.9 38,760.2 NET DEDUCTIONS/EXPENDITURES TAXES PRODUCTION M$ 65,343.4 59,504.7 55,142.2 50,704.4 47,024.8 44,041.4 41,600.6 39,402.1 37,334.2 35,390.2 33,633.8 32,002.2 30,461.0 29,000.8 27,615.2 628,200.7 455,034.1 1,083,234.8 AD VALOREM M$ 15,430.6 14,244.6 13,280.8 12,482.6 11,786.0 11,166.0 10,605.3 10,091.2 9,612.7 9,162.6 8,740.5 8,343.6 7,965.4 7,607.0 7,267.6 157,786.4 124,241.0 282,027.5 CAPITAL COST M$ 17,946.1 8,866.7 8,495.7 8,140.3 7,799.8 7,473.7 7,161.2 6,861.9 6,575.1 6,300.4 6,037.2 5,785.0 5,543.5 5,312.1 5,090.4 113,389.0 90,801.3 204,190.3 ABDNMNT COST M$ 4,735.1 4,735.1 4,765.5 4,765.5 4,765.5 5,366.1 6,172.5 6,979.0 7,756.6 8,534.2 9,338.8 10,184.2 10,931.4 11,678.6 12,446.4 113,154.3 1,584,952.4 1,698,106.7 OPERATING EXPENSE M$ 330,219.2 311,892.7 296,660.0 283,806.5 272,330.2 262,033.8 252,667.9 243,894.8 235,567.0 227,607.7 220,037.4 212,871.1 205,997.6 199,283.9 192,834.1 3,747,703.9 3,810,693.6 7,558,397.5 FUTURE NET REVENUE UNDISCOUNTED PERIOD M$ 1,378,717.2 1,264,653.1 1,167,607.1 1,089,120.8 1,021,492.4 960,812.7 905,693.8 855,321.7 808,908.8 765,761.2 725,222.3 686,974.9 650,928.7 616,791.0 584,400.6 13,482,406.2 7,846,754.1 21,329,160.3 CUM M$ 1,378,717.2 2,643,370.3 3,810,977.3 4,900,098.1 5,921,590.5 6,882,403.2 7,788,097.0 8,643,418.6 9,452,327.5 10,218,088.7 10,943,311.0 11,630,285.9 12,281,214.6 12,898,005.7 13,482,406.2 13,482,406.2 21,329,160.3 21,329,160.3 DISC AT 10.000% CUM M$ 1,315,621.1 2,412,645.6 3,333,311.9 4,113,969.6 4,779,563.7 5,348,690.0 5,836,387.8 6,255,085.9 6,615,063.2 6,924,858.2 7,191,580.6 7,421,268.2 7,619,119.5 7,789,552.3 7,936,355.5 7,936,355.5 8,825,461.8 8,825,461.8 PRESENT WORTH PROFILE DISC RATE % 5.000 6.000 7.000 8.000 9.000 12.000 15.000 20.000 25.000 30.000 CUM PW M$ 12,564,268.6 11,576,492.1 10,733,563.1 10,007,722.5 9,377,337.7 7,906,510.0 6,859,623.1 5,658,006.8 4,847,777.7 4,263,867.6 Table I |