SHEFFIELD ESTATE OIL UNIT NO. 1

Name: SHEFFIELD ESTATE OIL UNIT NO. 1 lease production and value, Jan 1993 onwards
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

Operated by KALOS CORPORATION (P-5 450450) in the MOONROCK (RODESSA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 12479District 06Field 62709600OilCasinghead gasSave Export

Value, all time

$633 k

Jan 1993 – Aug 2006

Value, last 12 filed months

$22 k

at the published price for each month

Months reported

164

no gaps in the span

Streams

oil, casinghead gas

The MOONROCK (RODESSA) field

The Railroad Commission's own record for the field this lease produces from, including the spacing rule that governs how close together its wells may be drilled.

These are facts about the field, not about this lease. The field holds 12 leases and 21 wells, and the rule below applies to all of them.

Discovered

1984-09-24

as the register files it

Field class

Oil

the register's own label

Between wells

—

no field rule filed

From a lease line

—

no field rule filed

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	21,254 bbl	$414,921
Casinghead gas	Production	139,899 Mcf	$218,382
Total			$633,303

78,812 Mcf of this lease's gas, across 48 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 (1)

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 32.3717, -94.9618. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

32.37172, -94.96179 · 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%

1 of 1 wells

With a plug date

100.0%

1 of 1 wells

Median depth

7,690 ft

1 wells filed one

Completion to plug

26.2 years

median over 1 well

What the state filed about each well

On the RRC proration schedule

1100.0%

A plug date is filed

1100.0%

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

1100.0%

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

The one well that filed a depth was drilled to 7,690 ft.

Completions filed

Jan 1989

1 of 1 wells

Plug dates filed

Mar 2015

1 of 1 wells

Last completion to plug: a median of 26.2 years across the 1 well that filed both dates, with the middle half between 26.2 years and 26.2 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well


42-18330751	1	7,690 ft	Jan 1989	Mar 2015	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 (164)

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

164 months


Aug 2006	0	0	68.71	7.34	$0
Jul 2006	0	0	69.37	6.34	$0
Jun 2006	0	0	66.28	6.38	$0
May 2006	123	31	66.01	6.42	$8,318
Apr 2006	0	35	64.39	7.36	$258
Mar 2006	0	31	56.70	7.08	$220
Feb 2006	0	200	57.59	7.75	$1,550
Jan 2006	0	80	60.59	8.93	$715
Dec 2005	0	31	54.94	13.42	$416
Nov 2005	179	35	54.69	10.59	$10,160
Oct 2005	0	31	58.34	13.80	$428
Sep 2005	0	30	61.45	12.08	$362
Aug 2005	0	39	61.51	9.80	$382
Jul 2005	0	61	55.69	7.84	$478
Jun 2005	0	47	52.33	7.38	$347
May 2005	0	34	45.22	6.65	$226
Apr 2005	178	34	49.20	7.36	$9,008
Mar 2005	0	61	50.37	7.15	$436
Feb 2005	0	52	45.22	6.31	$328
Jan 2005	0	52	43.16	6.32	$329
Dec 2004	184	75	39.86	6.75	$7,841
Nov 2004	0	31	45.28	6.33	$196
Oct 2004	0	46	49.70	6.52	$300
Sep 2004	0	37	43.24	5.28	$196
Aug 2004	173	61	42.37	5.55	$7,669
Jul 2004	0	114	38.28	6.08	$694
Jun 2004	0	116	36.10	6.43	$746
May 2004	0	150	37.48	6.49	$974
Apr 2004	174	135	34.47	5.86	$6,789
Mar 2004	0	150	34.36	5.53	$830
Feb 2004	0	173	32.45	5.51	$953
Jan 2004	169	121	32.03	6.30	$6,175
Dec 2003	2	144	30.26	6.30	$968
Nov 2003	0	229	28.80	4.60	$1,052
Oct 2003	1	279	28.17	4.76	$1,356
Sep 2003	169	276	26.31	4.75	$5,757
Aug 2003	0	396	29.76	5.13	$2,031
Jul 2003	0	450	29.41	5.17	$2,327
Jun 2003	180	425	28.56	5.98	$7,684
May 2003	0	458	26.59	5.97	$2,735
Apr 2003	0	463	26.67	5.41	$2,504
Mar 2003	170	488	31.14	6.10	$8,269
Feb 2003	0	466	33.48	7.93	$3,693
Jan 2003	1	551	30.31	5.58	$3,106
Dec 2002	0	586	26.91	4.85	$2,844
Nov 2002	171	611	24.66	4.14	$6,745
Oct 2002	1	692	26.46	4.23	$2,953
Sep 2002	0	659	27.44	3.64	$2,396
Aug 2002	169	687	25.96	3.16	$6,561
Jul 2002	0	692	24.58	3.06	$2,119
Jun 2002	0	696	23.73	3.34	$2,323
May 2002	1	728	24.66	3.58	$2,634
Apr 2002	169	685	23.65	3.51	$6,403
Mar 2002	0	696	22.00	3.10	$2,159
Feb 2002	2	640	18.22	2.38	$1,557
Jan 2002	173	709	17.17	2.38	$4,655
Dec 2001	0	693	16.93	2.36	$1,639
Nov 2001	169	700	18.07	2.41	$4,738
Oct 2001	0	767	19.78	2.53	$1,940
Sep 2001	0	771	24.26	2.25	$1,736
Aug 2001	169	792	24.87	3.05	$6,621
Jul 2001	0	841	23.93	3.20	$2,689
Jun 2001	0	831	24.56	3.82	$3,178
May 2001	179	881	25.52	4.31	$8,363
Apr 2001	0	861	24.68	5.34	$4,594
Mar 2001	179	878	24.54	5.38	$9,113
Feb 2001	0	795	27.75	5.77	$4,585
Jan 2001	0	892	27.47	8.40	$7,492
Dec 2000	183	920	26.88	9.12	$13,312
Nov 2000	0	938	32.21	5.66	$5,307
Oct 2000	179	985	31.23	5.15	$10,658
Sep 2000	0	897	31.87	5.19	$4,652
Aug 2000	0	932	29.64	4.54	$4,232
Jul 2000	175	934	28.53	4.09	$8,813
Jun 2000	0	901	29.30	4.40	$3,962
May 2000	180	919	27.26	3.68	$8,288
Apr 2000	0	882	24.51	3.12	$2,748
Mar 2000	177	910	28.42	2.86	$7,633
Feb 2000	182	866	27.62	2.73	$7,388
Jan 2000	0	876	25.27	2.48	$2,173
Dec 1999	177	743	24.28	2.42	$6,098
Nov 1999	176	589	23.19	2.43	$5,515
Oct 1999	0	573	20.98	2.80	$1,607
Sep 1999	177	636	21.75	2.62	$5,515
Aug 1999	0	592	19.26	2.88	$1,702
Jul 1999	178	749	17.89	2.37	$4,961
Jun 1999	0	890	15.94	2.36	$2,102
May 1999	170	679	15.79	2.32	$4,260
Apr 1999	0	369	15.10	2.21	$815
Mar 1999	181	771	12.47	1.84	$3,674
Feb 1999	177	613	9.98	1.82	$2,881
Jan 1999	0	612	10.38	1.90	$1,163
Dec 1998	181	623	9.20	1.77	$2,770
Nov 1998	180	681	10.89	2.19	$3,449
Oct 1998	181	783	12.42	1.97	$3,790
Sep 1998	354	718	12.59	2.08	$5,952
Aug 1998	0	851	11.30	1.91	$1,623
Jul 1998	1	927	11.74	2.24	$2,086
Jun 1998	175	903	11.24	2.24	$3,987
May 1998	553	969	12.62	2.21	$9,117
Apr 1998	0	1,063	13.04	2.51	$2,663
Mar 1998	0	1,083	12.80	2.31	$2,501
Feb 1998	176	887	13.95	2.30	$4,495
Jan 1998	174	1,110	14.70	2.15	$4,950
Dec 1997	180	819	16.32	2.41	$4,912
Nov 1997	181	1,126	18.19	3.09	$6,770
Oct 1997	650	1,183	19.25	3.15	$16,239
Sep 1997	0	1,304	17.74	2.95	$3,853
Aug 1997	0	133	17.86	2.55	$340
Jul 1997	0	218	17.58	2.25	$490
Jun 1997	178	1,784	17.24	2.26	$7,096
May 1997	0	35	18.97	2.31	$81
Apr 1997	182	7	17.88	2.08	$3,269
Mar 1997	0	411	18.95	1.94	$797
Feb 1997	0	191	20.49	2.21	$421
Jan 1997	0	1	23.48	3.54	$4
Dec 1996	171	499	23.32	—	$3,988
Nov 1996	176	1,401	21.97	—	$3,867
Oct 1996	359	1,521	23.31	—	$8,368
Sep 1996	175	1,577	22.22	—	$3,889
Aug 1996	174	1,151	20.26	—	$3,525
Jul 1996	355	1,457	19.55	—	$6,940
Jun 1996	181	1,503	18.73	—	$3,390
May 1996	176	721	19.43	—	$3,420
Apr 1996	538	1,154	21.51	—	$11,572
Mar 1996	355	1,488	19.38	—	$6,880
Feb 1996	174	1,299	16.98	—	$2,955
Jan 1996	180	1,484	17.07	—	$3,073
Dec 1995	176	1,609	17.19	—	$3,025
Nov 1995	349	1,660	16.00	—	$5,584
Oct 1995	356	2,817	15.43	—	$5,493
Sep 1995	182	1,163	16.18	—	$2,945
Aug 1995	0	683	15.92	—	$0
Jul 1995	172	714	15.24	—	$2,621
Jun 1995	180	998	16.41	—	$2,954
May 1995	169	1,059	17.56	—	$2,968
Apr 1995	178	1,154	17.73	—	$3,156
Mar 1995	174	1,256	16.44	—	$2,861
Feb 1995	176	1,203	16.58	—	$2,918
Jan 1995	179	1,309	15.92	—	$2,850
Dec 1994	348	1,433	15.03	—	$5,230
Nov 1994	0	1,119	15.90	—	$0
Oct 1994	353	1,415	15.58	—	$5,500
Sep 1994	173	1,342	15.29	—	$2,645
Aug 1994	176	1,518	16.13	—	$2,839
Jul 1994	173	1,353	17.56	—	$3,038
Jun 1994	352	1,530	17.09	—	$6,016
May 1994	175	1,558	15.88	—	$2,779
Apr 1994	181	1,552	14.14	—	$2,559
Mar 1994	185	1,902	12.46	—	$2,305
Feb 1994	538	2,091	12.50	—	$6,725
Jan 1994	0	1,093	12.66	—	$0
Dec 1993	351	2,845	12.33	—	$4,328
Nov 1993	361	2,504	14.49	—	$5,231
Oct 1993	185	2,409	15.85	—	$2,932
Sep 1993	369	3,005	15.03	—	$5,546
Aug 1993	368	2,665	15.66	—	$5,763
Jul 1993	368	2,918	15.46	—	$5,689
Jun 1993	351	2,554	16.79	—	$5,893
May 1993	526	2,287	17.68	—	$9,300
Apr 1993	354	3,570	18.05	—	$6,390
Mar 1993	567	3,322	18.14	—	$10,285
Feb 1993	397	1,259	17.90	—	$7,106
Jan 1993	355	688	16.93	—	$6,010

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.

May 2006 — as filed, then multipliedworked

Oil                  123 bbl  × $ 66.01 =     $8,119
Casinghead gas        31 Mcf  × $  6.42 =       $199

────────────────────────────────────────────────────
Month total                                   $8,318

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. 06/O/12479 is the state's own key, not one this site invented.