MCELROY RANCH CO. -F-

Oil // district 9 // lease#2590

op: UMC PETROLEUM CORPORATION

cum_oil

371k BBL

cum_gas

0 MCF

wells

23

production

1993-01 — 2026-03

peak_month

1994-01

-- production_history

cum_oil: 370,910 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

4,127 BBL/mo

Di (annual)

21.1%

b-factor

0.3

EUR

322,775 BBL

R-squared

0.788

type

hyperbolic

-- wells (23)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
21DEVON ENERGY PRODUCTION CO, L.P.19,4502015-07-23
30HDEVON ENERGY PRODUCTION CO, L.P.316,7002013-05-01
31DDEVON ENERGY PRODUCTION CO, L.P.25,5002013-03-18
2DDEVON ENERGY PRODUCTION CO, L.P.19,6542013-02-12
13DEVON ENERGY PRODUCTION CO, L.P.19,9812009-05-20
10UMC PETROLEUM CORPORATION29,6282003-03-04
25UMC PETROLEUM CORPORATION29,7002000-08-29
16OCEAN ENERGY, INC.29,7701998-08-11
27UMC PETROLEUM CORPORATION110,0001998-05-13
26UMC PETROLEUM CORPORATION110,0001998-03-26
5PENNZOIL PETROLEUM COMPANY19,7381994-04-19
22GULF OIL CORP.19,9001980-05-22
1242-461-10039--------
1442-461-10032--------
1542-461-10159--------
18 L42-461-10192--------
242-461-10253--------
2042-461-10240--------
342-461-00686--------
442-461-00687--------
642-461-10091--------
842-461-10105--------
942-461-10009--------
EOF // data source: Texas Railroad Commission // 2026