SADLER (DORNICK HILLS) SAND UNIT

Oil // district 13 // lease#27921

op: GRAYSON PETROLEUM COMPANY

cum_oil

220k BBL

cum_gas

0 MCF

wells

13

production

1993-01 — 2026-03

peak_month

1996-08

-- production_history

cum_oil: 219,678 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,432 BBL/mo

Di (annual)

28.8%

b-factor

0.3

EUR

83,506 BBL

R-squared

0.332

type

hyperbolic

-- wells (13)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
9GRAYSON PETROLEUM COMPANY26,2032025-03-27
11GRAYSON PETROLEUM COMPANY36,8002022-11-29
13GRAYSON PETROLEUM COMPANY26,8002014-06-10
12GRAYSON PETROLEUM COMPANY16,2501996-05-29
8GRAYSON PETROLEUM COMPANY16,2141992-01-21
7GRAYSON PETROLEUM COMPANY16,1801990-02-23
142-181-01440--------
1042-181-02013--------
242-181-80045--------
342-181-80046--------
442-181-00051--------
542-181-00052--------
642-181-00053--------
EOF // data source: Texas Railroad Commission // 2026