HERRING, E.

Oil // district 14 // lease#977

op: RIMROCK GAS COMPANY

cum_oil

13k BBL

cum_gas

0 MCF

wells

10

production

1993-01 — 2026-03

peak_month

1995-10

-- production_history

cum_oil: 13,319 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

173 BBL/mo

Di (annual)

62.3%

b-factor

0.5

EUR

6,175 BBL

R-squared

0.553

type

hyperbolic

-- wells (10)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
12LERA23,6002011-08-29
6NIVENS OIL CO.13,3001987-08-24
11OTTCO OIL, INC.13,5001982-06-11
10OTTCO OIL, INC.13,4001981-10-23
8WESTERN STATES PET. DEV. INC.13,4001981-10-23
9OTTCO OIL, INC.13,4001981-10-23
6AWESTERN STATES PET. DEV. INC.13,4001981-02-18
7WWESTERN STATES PET. DEV. INC.13,4001980-12-31
342-233-82245--------
542-233-82246--------
EOF // data source: Texas Railroad Commission // 2026