SOUTH PHOENIX (GRAYBURG) UNIT

Oil // district 10 // lease#32071

op: WASH, ROBERT C. INC.

cum_oil

214k BBL

cum_gas

0 MCF

wells

28

production

1993-01 — 2026-03

peak_month

1993-01

-- production_history

cum_oil: 214,230 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

4,345 BBL/mo

Di (annual)

30.3%

b-factor

0.2

EUR

214,278 BBL

R-squared

0.967

type

hyperbolic

-- wells (28)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
22R K PETROLEUM CORPORATION412,5002014-01-18
28BEACH EXPLORATION, INC.14,0001992-08-05
27BEACH EXPLORATION, INC.14,1001991-06-19
23BEACH EXPLORATION, INC.14,1001990-03-19
24BEACH EXPLORATION, INC.14,1001990-03-19
25BEACH EXPLORATION, INC.14,1001990-03-19
21BEACH EXPLORATION, INC.14,1501989-03-08
7BEACH EXPLORATION, INC.14,3001985-10-11
142-317-30455--------
1042-317-31377--------
1142-317-31344--------
1242-317-31501--------
1342-317-31112--------
1442-317-31402--------
1542-317-31400--------
1642-317-31484--------
1742-317-30695--------
1842-317-31511--------
1942-317-31538--------
242-317-31622--------
2042-317-30709--------
2642-317-30567--------
342-317-31331--------
442-317-31376--------
542-317-31362--------
642-317-31588--------
842-317-31304--------
942-317-31216--------
EOF // data source: Texas Railroad Commission // 2026