SHIRK, MARY K.

Name: SHIRK, MARY K. lease production and value, Jan 1993 onwards
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

Operated by SOUTHWEST ROYALTIES, INC. (P-5 806470) in the MARY SHIRK (WOLFCAMP) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 7859District 7CField 58022500OilCasinghead gasSave Export

Value, all time

$2.2 M

Jan 1993 – Aug 2007

Value, last 12 filed months

at the published price for each month

Months reported

176

no gaps in the span

Streams

oil, casinghead gas

The MARY SHIRK (WOLFCAMP) 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 3 leases and 3 wells, and the rule below applies to all of them.

Discovered

1979-05-01

as the register files it

Field class

Oil and gas

the register's own label

Between wells

1,320 ft

minimum

From a lease line

660 ft

minimum

A drilling unit in this field needs at least 80 acres.

The Commission's schedule remark for this field reads: “OPTIONAL 80 ACRE UNITS; MAX DIAG. 3250”

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	61,501 bbl	$1,099,638
Casinghead gas	Production	920,953 Mcf	$1,074,541
Total			$2,174,179

563,238 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 31.2782, -102.0778. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.27823, -102.07783 · 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

0.0%

0 of 1 wells

Median depth

10,250 ft

1 wells filed one

Completion to plug

—

no well filed both dates

What the state filed about each well

On the RRC proration schedule

1100.0%

A plug date is filed

00.0%

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

00.0%

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 10,250 ft.

Completions filed

Apr 2003

1 of 1 wells

1 well


42-46110177	1	10,250 ft	Apr 2003	—	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 (176)

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

176 months


Aug 2007	0	0	69.06	6.39	$0
Jul 2007	0	0	70.90	6.39	$0
Jun 2007	0	0	62.00	7.55	$0
May 2007	0	0	58.74	7.85	$0
Apr 2007	0	0	59.61	7.81	$0
Mar 2007	0	0	56.92	7.30	$0
Feb 2007	0	0	55.10	8.22	$0
Jan 2007	0	0	50.30	6.73	$0
Dec 2006	0	0	56.65	6.92	$0
Nov 2006	0	0	54.20	7.62	$0
Oct 2006	0	0	54.90	6.01	$0
Sep 2006	0	0	60.08	5.04	$0
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	0	0	66.01	6.42	$0
Apr 2006	0	0	64.39	7.36	$0
Mar 2006	0	0	56.70	7.08	$0
Feb 2006	0	0	57.59	7.75	$0
Jan 2006	0	0	60.59	8.93	$0
Dec 2005	0	0	54.94	13.42	$0
Nov 2005	0	0	54.69	10.59	$0
Oct 2005	0	0	58.34	13.80	$0
Sep 2005	0	0	61.45	12.08	$0
Aug 2005	0	0	61.51	9.80	$0
Jul 2005	0	0	55.69	7.84	$0
Jun 2005	0	0	52.33	7.38	$0
May 2005	0	0	45.22	6.65	$0
Apr 2005	0	0	49.20	7.36	$0
Mar 2005	0	0	50.37	7.15	$0
Feb 2005	0	0	45.22	6.31	$0
Jan 2005	0	0	43.16	6.32	$0
Dec 2004	0	0	39.86	6.75	$0
Nov 2004	0	0	45.28	6.33	$0
Oct 2004	0	0	49.70	6.52	$0
Sep 2004	169	0	43.24	5.28	$7,308
Aug 2004	0	0	42.37	5.55	$0
Jul 2004	0	0	38.28	6.08	$0
Jun 2004	0	0	36.10	6.43	$0
May 2004	0	0	37.48	6.49	$0
Apr 2004	0	0	34.47	5.86	$0
Mar 2004	0	0	34.36	5.53	$0
Feb 2004	0	0	32.45	5.51	$0
Jan 2004	0	0	32.03	6.30	$0
Dec 2003	0	0	30.26	6.30	$0
Nov 2003	0	0	28.80	4.60	$0
Oct 2003	0	0	28.17	4.76	$0
Sep 2003	0	1,119	26.31	4.75	$5,315
Aug 2003	0	0	29.76	5.13	$0
Jul 2003	0	0	29.41	5.17	$0
Jun 2003	0	0	28.56	5.98	$0
May 2003	0	0	26.59	5.97	$0
Apr 2003	0	0	26.67	5.41	$0
Mar 2003	189	1,983	31.14	6.10	$17,974
Feb 2003	0	1,298	33.48	7.93	$10,288
Jan 2003	0	1,564	30.31	5.58	$8,730
Dec 2002	360	1,668	26.91	4.85	$17,784
Nov 2002	0	1,758	24.66	4.14	$7,273
Oct 2002	182	2,656	26.46	4.23	$16,048
Sep 2002	0	2,218	27.44	3.64	$8,063
Aug 2002	179	2,314	25.96	3.16	$11,969
Jul 2002	182	2,364	24.58	3.06	$11,712
Jun 2002	177	2,109	23.73	3.34	$11,241
May 2002	356	2,395	24.66	3.58	$17,363
Apr 2002	0	2,271	23.65	3.51	$7,976
Mar 2002	0	2,122	22.00	3.10	$6,584
Feb 2002	185	2,560	18.22	2.38	$9,452
Jan 2002	0	2,717	17.17	2.38	$6,455
Dec 2001	369	2,356	16.93	2.36	$11,818
Nov 2001	360	2,896	18.07	2.41	$13,472
Oct 2001	178	3,081	19.78	2.53	$11,312
Sep 2001	182	2,295	24.26	2.25	$9,582
Aug 2001	0	3,138	24.87	3.05	$9,581
Jul 2001	0	2,797	23.93	3.20	$8,942
Jun 2001	0	3,219	24.56	3.82	$12,310
May 2001	0	3,453	25.52	4.31	$14,873
Apr 2001	183	3,805	24.68	5.34	$24,817
Mar 2001	0	2,711	24.54	5.38	$14,576
Feb 2001	355	3,377	27.75	5.77	$29,327
Jan 2001	0	3,698	27.47	8.40	$31,059
Dec 2000	540	4,162	26.88	9.12	$52,483
Nov 2000	544	4,418	32.21	5.66	$42,519
Oct 2000	723	4,645	31.23	5.15	$46,480
Sep 2000	0	4,008	31.87	5.19	$20,787
Aug 2000	176	4,204	29.64	4.54	$24,306
Jul 2000	363	4,440	28.53	4.09	$28,515
Jun 2000	178	4,278	29.30	4.40	$24,027
May 2000	180	4,749	27.26	3.68	$22,382
Apr 2000	360	4,475	24.51	3.12	$22,768
Mar 2000	361	4,991	28.42	2.86	$24,533
Feb 2000	548	4,497	27.62	2.73	$27,397
Jan 2000	183	5,057	25.27	2.48	$17,168
Dec 1999	366	4,994	24.28	2.42	$20,991
Nov 1999	364	4,811	23.19	2.43	$20,151
Oct 1999	544	5,429	20.98	2.80	$26,634
Sep 1999	358	5,471	21.75	2.62	$22,114
Aug 1999	713	6,111	19.26	2.88	$31,305
Jul 1999	365	6,038	17.89	2.37	$20,854
Jun 1999	188	5,299	15.94	2.36	$15,513
May 1999	733	6,167	15.79	2.32	$25,888
Apr 1999	366	4,939	15.10	2.21	$16,432
Mar 1999	386	5,810	12.47	1.84	$15,494
Feb 1999	362	4,990	9.98	1.82	$12,684
Jan 1999	367	5,461	10.38	1.90	$14,185
Dec 1998	162	4,623	9.20	1.77	$9,688
Nov 1998	360	5,651	10.89	2.19	$16,272
Oct 1998	360	5,921	12.42	1.97	$16,131
Sep 1998	246	5,675	12.59	2.08	$14,916
Aug 1998	530	6,174	11.30	1.91	$17,765
Jul 1998	351	6,343	11.74	2.24	$18,312
Jun 1998	181	6,165	11.24	2.24	$15,827
May 1998	532	6,003	12.62	2.21	$19,959
Apr 1998	359	6,450	13.04	2.51	$20,841
Mar 1998	359	7,416	12.80	2.31	$21,722
Feb 1998	542	6,852	13.95	2.30	$23,315
Jan 1998	739	8,031	14.70	2.15	$28,168
Dec 1997	738	7,290	16.32	2.41	$29,621
Nov 1997	731	7,996	18.19	3.09	$37,991
Oct 1997	180	8,484	19.25	3.15	$30,188
Sep 1997	713	8,054	17.74	2.95	$36,447
Aug 1997	362	7,731	17.86	2.55	$26,216
Jul 1997	716	8,986	17.58	2.25	$32,778
Jun 1997	715	6,963	17.24	2.26	$28,043
May 1997	704	7,257	18.97	2.31	$30,108
Apr 1997	180	6,477	17.88	2.08	$16,709
Mar 1997	538	8,270	18.95	1.94	$26,232
Feb 1997	553	8,100	20.49	2.21	$29,199
Jan 1997	553	7,417	23.48	3.54	$39,238
Dec 1996	563	7,830	23.32	—	$13,129
Nov 1996	366	7,539	21.97	—	$8,041
Oct 1996	376	8,399	23.31	—	$8,765
Sep 1996	544	7,725	22.22	—	$12,088
Aug 1996	536	8,054	20.26	—	$10,859
Jul 1996	359	8,180	19.55	—	$7,018
Jun 1996	182	7,221	18.73	—	$3,409
May 1996	368	7,747	19.43	—	$7,150
Apr 1996	917	9,762	21.51	—	$19,725
Mar 1996	741	10,393	19.38	—	$14,361
Feb 1996	373	8,399	16.98	—	$6,334
Jan 1996	557	10,447	17.07	—	$9,508
Dec 1995	736	10,278	17.19	—	$12,652
Nov 1995	369	9,503	16.00	—	$5,904
Oct 1995	735	11,170	15.43	—	$11,341
Sep 1995	543	11,043	16.18	—	$8,786
Aug 1995	560	10,520	15.92	—	$8,915
Jul 1995	725	11,690	15.24	—	$11,049
Jun 1995	714	11,139	16.41	—	$11,717
May 1995	551	11,342	17.56	—	$9,676
Apr 1995	583	10,278	17.73	—	$10,337
Mar 1995	556	12,843	16.44	—	$9,141
Feb 1995	818	11,866	16.58	—	$13,562
Jan 1995	806	12,694	15.92	—	$12,832
Dec 1994	915	13,081	15.03	—	$13,752
Nov 1994	539	10,828	15.90	—	$8,570
Oct 1994	898	14,013	15.58	—	$13,991
Sep 1994	757	13,368	15.29	—	$11,575
Aug 1994	918	12,617	16.13	—	$14,807
Jul 1994	576	12,232	17.56	—	$10,115
Jun 1994	899	10,485	17.09	—	$15,364
May 1994	893	9,481	15.88	—	$14,181
Apr 1994	719	13,787	14.14	—	$10,167
Mar 1994	1,248	12,939	12.46	—	$15,550
Feb 1994	547	11,324	12.50	—	$6,838
Jan 1994	337	10,760	12.66	—	$4,266
Dec 1993	1,276	15,463	12.33	—	$15,733
Nov 1993	902	15,184	14.49	—	$13,070
Oct 1993	910	16,658	15.85	—	$14,424
Sep 1993	1,273	15,458	15.03	—	$19,133
Aug 1993	1,626	16,481	15.66	—	$25,463
Jul 1993	724	17,213	15.46	—	$11,193
Jun 1993	1,416	15,566	16.79	—	$23,775
May 1993	1,269	13,563	17.68	—	$22,436
Apr 1993	732	13,426	18.05	—	$13,213
Mar 1993	1,654	15,450	18.14	—	$30,004
Feb 1993	1,507	13,170	17.90	—	$26,975
Jan 1993	1,110	14,629	16.93	—	$18,792

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 2004 — as filed, then multipliedworked

Oil                  169 bbl  × $ 43.24 =     $7,308
Casinghead gas         0 Mcf  × $  5.28 =         $0

────────────────────────────────────────────────────
Month total                                   $7,308

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. 7C/O/7859 is the state's own key, not one this site invented.