LOCKHART "A" 36

Oil // district 14 // lease#4989

op: UPLAND RESOURCES, INC.

cum_oil

86k BBL

cum_gas

0 MCF

wells

5

production

1993-01 — 2026-03

peak_month

2012-06

-- production_history

cum_oil: 85,880 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

2,983 BBL/mo

Di (annual)

65.5%

b-factor

0.3

EUR

77,835 BBL

R-squared

0.820

type

hyperbolic

-- wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7HCGRANITE OPERATING COMPANY18,0002012-01-10
6UPLAND RESOURCES, INC.212,8002007-04-27
5UPLAND RESOURCES, INC.111,5002005-05-09
2INTERNORTH, INC.17,9001982-02-03
1INTERNORTH, INC.17,9001981-10-29
EOF // data source: Texas Railroad Commission // 2026