HICKMAN "A"

Oil // district 8 // lease#21778

op: GOODROCK NATURAL RESOURCES, LLC

cum_oil

111k BBL

cum_gas

0 MCF

wells

4

production

1993-01 — 2026-03

peak_month

1993-01

-- production_history

cum_oil: 111,171 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,004 BBL/mo

Di (annual)

10.3%

b-factor

0.0

EUR

116,482 BBL

R-squared

0.864

type

exponential

-- wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6XLECLAIR OPERATING CO., INC.36,8002007-05-24
6XRLECLAIR OPERATING CO., INC.36,8002007-05-24
5COCKRELL PRODUCTION CO., INC.16,8001985-09-17
4COCKRELL PRODUCTION CO., INC.16,8001985-05-16
EOF // data source: Texas Railroad Commission // 2026