DORA ROBERTS RANCH UNIT

Name: DORA ROBERTS RANCH UNIT lease production and value, Jan 1993 onwards
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

Operated by OXY USA INC. (P-5 630591) in the VIREY (PENNSYLVANIAN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 15873District 08Field 93958500OilCasinghead gasSave

Value, all time

$398 k

Jan 1993 – Sep 1996

Value, last 12 filed months

at the published price for each month

Months reported

no gaps in the span

Streams

oil, casinghead gas

What this lease produced, and what it was worth

Oil and condensate are valued on the volume the state records as disposed of; gas and casinghead gas on the volume produced. They are different columns of different files, and the difference is not cosmetic.

Stream	Basis	Volume	Value
Oil	Disposition	25,170 bbl	$397,838
Casinghead gas	Production	678,121 Mcf	$0
Total			$397,838

678,121 Mcf of this lease's gas, across 33 months, carries no value here. No free Texas wellhead gas price exists before 1997, so those months are left out of the total rather than valued at zero. The total above is therefore a floor, not an estimate.

Wells on this lease (22)

Every wellbore the Railroad Commission records against this lease key, with the depth, the last completion and the plug date exactly as filed. A well with no plug date is not stated to be producing — the state files no such flag.

These wells centre on 31.7807, -102.2501. A lease has no coordinate of its own — that point is the mean of its wells, and they span 2.8 miles.

31.77934, -102.25096 · centre of the wells drawn, derived⌘ or Ctrl + scroll to zoom

What these wells add up to

Every figure below is counted over all of this lease's wells, not over the rows listed above. The Railroad Commission files two facts about a well's state — a plug date and a proration-schedule flag — and a well can carry both, so they are published as separate counts and never merged into a status.

On the schedule

100.0%

22 of 22 wells

With a plug date

36.4%

8 of 22 wells

Median depth

13,201 ft

22 wells filed one

Completion to plug

18.0 years

median over 5 wells

What the state filed about each well

On the RRC proration schedule

22100.0%

A plug date is filed

836.4%

BothOn the schedule and plugged. Neither fact cancels the other.

836.4%

NeitherNo plug date, and not on the schedule.

00.0%

A plug date is the date the Commission recorded the wellbore as sealed with cement and abandoned. It is the only end-of-life fact Texas files. There is no "active" flag on a well, so this page does not print one — a well with no plug date is not stated to be producing.

How deep they were drilled

10k

12k

15k

20k+

Total depth in feet, 22 of 22 wells. Median 13,201 ft, with the middle half between 12,397 and 13,267 ft; the shallowest is 10,274 ft and the deepest 13,327 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

80s

90s

00s

10s

20s

Last completion by decade, 16 of 22 wells, May 1984 – Dec 2024. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed

May 1984 – Dec 2024

16 of 22 wells; 6 filed none

Plug dates filed

Aug 1989 – May 2024

8 of 22 wells; 14 filed none

Last completion to plug: a median of 18.0 years across the 5 wells that filed both dates, with the middle half between 3.8 years and 27.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

22 wells


42-32900193	2104	13,308 ft	—	—	Yes
42-32900394	1614 C	13,169 ft	—	Nov 2003	Yes
42-32900422	1512 C	10,274 ft	—	May 2024	Yes
42-32900431	2105 C	13,217 ft	—	—	Yes
42-32900438	1609 C	13,157 ft	—	Feb 2013	Yes
42-32902043	1605	13,230 ft	—	—	Yes
42-32900423	2103 C	13,270 ft	Dec 2024	—	Yes
42-32900403	1005 C	13,128 ft	Jun 2020	—	Yes
42-32900386	1514	13,292 ft	Dec 2019	Nov 2022	Yes
42-32900192	2205	13,300 ft	Dec 2016	—	Yes
42-32902047	2101 C	13,294 ft	May 2012	—	Yes
42-32900308	1701	13,218 ft	Dec 2006	—	Yes
42-32900413	1004	13,193 ft	Oct 2002	—	Yes
42-32931438	2801	12,695 ft	Mar 1994	—	Yes
42-32900194	1602	13,209 ft	May 1993	—	Yes
42-32900409	2001	13,327 ft	Jan 1992	—	Yes
42-32902044	2201 C	13,257 ft	Oct 1991	Jul 2019	Yes
42-32910035	906	12,297 ft	Jul 1991	Jul 2009	Yes
42-32900300	1006	12,200 ft	Oct 1985	Aug 1989	Yes
42-32931397	2213	10,750 ft	Oct 1984	—	Yes
42-32910032	1612	12,265 ft	Oct 1984	Mar 2020	Yes
42-32931323	2107	10,790 ft	May 1984	—	Yes

The API number is the state's, prefixed 42 for Texas. A well is matched to this lease by the lease key the Commission files on the wellbore record, so a well that has moved between leases appears under each one it was filed against.

Every month this lease reported (45)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

45 months


Sep 1996	0	0	22.22	—	$0
Aug 1996	0	0	20.26	—	$0
Jul 1996	0	0	19.55	—	$0
Jun 1996	0	0	18.73	—	$0
May 1996	0	0	19.43	—	$0
Apr 1996	0	0	21.51	—	$0
Mar 1996	0	0	19.38	—	$0
Feb 1996	0	0	16.98	—	$0
Jan 1996	0	0	17.07	—	$0
Dec 1995	0	0	17.19	—	$0
Nov 1995	0	0	16.00	—	$0
Oct 1995	0	0	15.43	—	$0
Sep 1995	1,430	19,610	16.18	—	$23,137
Aug 1995	1,095	21,614	15.92	—	$17,432
Jul 1995	704	15,579	15.24	—	$10,729
Jun 1995	727	12,920	16.41	—	$11,930
May 1995	975	15,752	17.56	—	$17,121
Apr 1995	937	14,330	17.73	—	$16,613
Mar 1995	1,034	16,638	16.44	—	$16,999
Feb 1995	905	14,159	16.58	—	$15,005
Jan 1995	1,032	17,213	15.92	—	$16,429
Dec 1994	1,166	18,617	15.03	—	$17,525
Nov 1994	1,400	20,912	15.90	—	$22,260
Oct 1994	938	16,377	15.58	—	$14,614
Sep 1994	631	18,516	15.29	—	$9,648
Aug 1994	652	18,973	16.13	—	$10,517
Jul 1994	680	11,254	17.56	—	$11,941
Jun 1994	447	12,585	17.09	—	$7,639
May 1994	438	15,381	15.88	—	$6,955
Apr 1994	363	15,325	14.14	—	$5,133
Mar 1994	783	22,757	12.46	—	$9,756
Feb 1994	559	29,216	12.50	—	$6,988
Jan 1994	744	26,826	12.66	—	$9,419
Dec 1993	566	26,752	12.33	—	$6,979
Nov 1993	840	23,290	14.49	—	$12,172
Oct 1993	932	29,149	15.85	—	$14,772
Sep 1993	799	35,098	15.03	—	$12,009
Aug 1993	1,064	28,346	15.66	—	$16,662
Jul 1993	480	24,299	15.46	—	$7,421
Jun 1993	445	25,119	16.79	—	$7,472
May 1993	344	16,259	17.68	—	$6,082
Apr 1993	663	25,509	18.05	—	$11,967
Mar 1993	477	26,432	18.14	—	$8,653
Feb 1993	292	25,752	17.90	—	$5,227
Jan 1993	628	17,562	16.93	—	$10,632

How to read this page

The arithmetic is one multiplication per stream per month. Here it is, worked, on a real row from the table above.

Sep 1995 — as filed, then multipliedworked

Oil                1,430 bbl  × $ 16.18 =    $23,137
Casinghead gas    19,610 Mcf  ×  no price            —

────────────────────────────────────────────────────
Month total                                  $23,137

The volumes are the state's, unchanged

Every barrel and every Mcf on this page is a number the Railroad Commission of Texas published in its monthly production query. Nothing is modelled, estimated or filled in.

The dollars are a multiplication, not a valuation

Volume × a published monthly price. It is not what the operator was paid: it takes no account of a contract, a differential, a transportation deduction, or the share any one owner holds.

Oil and gas are priced differently

Oil is a Texas realisation — the crude oil first purchase price. Gas is a benchmark, because no free Texas wellhead gas series exists at any date. The prices page publishes the difference rather than correcting it away.

A lease is not a well

The state reports oil on lease and gas on well, and this page is the lease grain. 08/O/15873 is the state's own key, not one this site invented.