SADLER (DORNICK HILLS) SAND UNIT
Oil · District 09 · Lease #27921
Operator: GRAYSON PETROLEUM COMPANY
Fields: ANDRADE (DORNICK HILLS)
Cum Oil
222k BBL
Cum Gas
21 MCF
casinghead
Wells
13
Production
1993-01 — 2026-04
Peak Month
1996-08
Production History Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]
Cum Oil: 222,178 BBL Cum Gas: 21 MCF
RRC production reported through Apr 2026 · recent months incomplete
Decline Curve Analysis
qi
2,721 BBL/mo
Di (annual)
55.7%
b-factor
0.4
EUR
95,317 BBL
R-squared
0.301
type
hyperbolic
Operator History (from monthly production reports)
Wells (13)
| WELL# | API | OPERATOR | PERMITS | DEPTH | LAST_ISSUED |
|---|---|---|---|---|---|
| 9 | 42-181-02012 | GRAYSON PETROLEUM COMPANY | 2 | 6,203 | 2025-03-27 |
| 11 | 42-181-31295 | GRAYSON PETROLEUM COMPANY | 3 | 6,800 | 2022-11-29 |
| 13 | 42-181-31321 | GRAYSON PETROLEUM COMPANY | 2 | 6,800 | 2014-06-10 |
| 12 | 42-181-31299 | GRAYSON PETROLEUM COMPANY | 1 | 6,250 | 1996-05-29 |
| 8 | 42-181-01724 | GRAYSON PETROLEUM COMPANY | 1 | 6,214 | 1992-01-21 |
| 7 | 42-181-01725 | GRAYSON PETROLEUM COMPANY | 1 | 6,180 | 1990-02-23 |
| 1 | 42-181-01440 | GRAYSON PETROLEUM COMPANY | -- | -- | -- |
| 10 | 42-181-02013 | GRAYSON PETROLEUM COMPANY | -- | -- | -- |
| 2 | 42-181-80045 | GRAYSON PETROLEUM COMPANY | -- | -- | -- |
| 3 | 42-181-80046 | GRAYSON PETROLEUM COMPANY | -- | -- | -- |
| 4 | 42-181-00051 | GRAYSON PETROLEUM COMPANY | -- | -- | -- |
| 5 | 42-181-00052 | GRAYSON PETROLEUM COMPANY | -- | -- | -- |
| 6 | 42-181-00053 | GRAYSON PETROLEUM COMPANY | -- | -- | -- |