HILGER-KOLB UNIT

Name: HILGER-KOLB UNIT lease production and value, Dec 1995 onwards
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

Operated by COBRA OIL & GAS CORPORATION (P-5 163000) in the COBRA (WOLFCAMP) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 34785District 08Field 19235700OilCasinghead gasSave

Value, all time

$328.0 M

Dec 1995 – May 2018

Value, last 12 filed months

$12 k

at the published price for each month

Months reported

270

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	5,670,573 bbl	$300,596,747
Casinghead gas	Production	4,785,360 Mcf	$27,375,391
Total			$327,972,138

115,884 Mcf of this lease's gas, across 13 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 (4)

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 31.9551, -101.6162. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.6 miles.

31.95533, -101.61624 · 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%

4 of 4 wells

With a plug date

100.0%

4 of 4 wells

Median depth

7,925 ft

4 wells filed one

Completion to plug

18.8 years

median over 4 wells

What the state filed about each well

On the RRC proration schedule

4100.0%

A plug date is filed

4100.0%

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

4100.0%

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

Between 7,920 and 8,080 ft, median 7,925 ft, over the 4 wells that filed a depth.

Completions filed

Dec 1995 – May 2003

4 of 4 wells

Plug dates filed

Oct 2017 – Dec 2017

4 of 4 wells

Last completion to plug: a median of 18.8 years across the 4 wells that filed both dates, with the middle half between 16.1 years and 21.2 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

4 wells


42-17333108	3	7,930 ft	May 2003	Oct 2017	Yes
42-17333060	1W	8,080 ft	May 2001	Dec 2017	Yes
42-17332665	2	7,920 ft	Nov 1996	Oct 2017	Yes
42-17332572	1	7,920 ft	Dec 1995	Oct 2017	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 (270)

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

270 months


May 2018	0	0	65.38	2.90	$0
Apr 2018	0	0	63.84	2.90	$0
Mar 2018	171	0	61.22	2.79	$10,469
Feb 2018	0	0	61.78	2.77	$0
Jan 2018	0	0	62.87	4.01	$0
Dec 2017	0	0	57.27	2.92	$0
Nov 2017	0	0	55.42	3.12	$0
Oct 2017	11	0	49.29	2.98	$542
Sep 2017	1	8	47.52	3.09	$72
Aug 2017	0	11	45.37	3.00	$33
Jul 2017	4	19	43.87	3.09	$234
Jun 2017	5	0	42.49	3.09	$212
May 2017	0	0	45.37	3.26	$0
Apr 2017	0	0	47.93	3.21	$0
Mar 2017	0	0	46.77	2.98	$0
Feb 2017	0	0	50.45	2.95	$0
Jan 2017	0	0	49.41	3.42	$0
Dec 2016	360	0	48.76	3.72	$17,554
Nov 2016	364	0	42.49	2.64	$15,466
Oct 2016	1	0	46.19	3.09	$46
Sep 2016	358	0	41.55	3.10	$14,875
Aug 2016	368	0	41.44	2.92	$15,250
Jul 2016	0	0	41.62	2.92	$0
Jun 2016	1,026	0	45.35	2.69	$46,529
May 2016	724	0	42.52	1.99	$30,784
Apr 2016	0	0	36.56	1.99	$0
Mar 2016	363	0	33.01	1.79	$11,983
Feb 2016	716	820	26.47	2.06	$20,645
Jan 2016	2,161	584	27.35	2.36	$60,484
Dec 2015	1,079	1,223	32.36	2.00	$37,364
Nov 2015	1,430	384	38.79	2.17	$56,302
Oct 2015	2,165	120	43.55	2.43	$94,577
Sep 2015	1,091	94	42.99	2.76	$47,161
Aug 2015	1,443	0	40.16	2.87	$57,951
Jul 2015	715	0	48.15	2.95	$34,427
Jun 2015	2,231	47	56.15	2.88	$125,406
May 2015	525	84	55.21	2.96	$29,234
Apr 2015	2,165	0	49.82	2.71	$107,860
Mar 2015	2,369	415	42.89	2.93	$102,824
Feb 2015	1,453	597	44.66	2.98	$66,668
Jan 2015	2,179	3,752	43.43	3.10	$106,268
Dec 2014	3,485	4,256	54.69	3.59	$205,879
Nov 2014	2,525	3,805	70.46	4.25	$194,090
Oct 2014	2,162	3,958	78.30	3.90	$184,725
Sep 2014	6,178	5,391	86.16	4.05	$554,105
Aug 2014	5,279	4,987	89.39	4.04	$492,013
Jul 2014	5,771	4,942	96.56	4.18	$577,903
Jun 2014	5,600	4,316	98.16	4.74	$570,140
May 2014	6,102	4,472	94.73	4.73	$599,180
Apr 2014	5,296	5,010	95.94	4.81	$532,192
Mar 2014	3,612	1,378	95.89	5.06	$353,323
Feb 2014	4,584	3,821	97.40	6.19	$470,141
Jan 2014	6,659	2,610	90.40	4.86	$614,660
Dec 2013	6,287	4,716	91.82	4.35	$597,808
Nov 2013	5,688	5,268	88.85	3.74	$525,072
Oct 2013	5,693	3,233	97.42	3.78	$566,831
Sep 2013	8,394	1,451	104.11	3.72	$879,294
Aug 2013	7,721	3,137	104.25	3.52	$815,965
Jul 2013	7,817	4,458	102.52	3.72	$817,973
Jun 2013	9,058	4,577	94.40	3.93	$873,078
May 2013	8,744	5,148	94.83	4.15	$850,553
Apr 2013	10,713	7,287	93.96	4.28	$1,037,801
Mar 2013	9,858	6,520	93.62	3.91	$948,418
Feb 2013	8,676	9,167	91.23	3.42	$822,862
Jan 2013	10,482	12,220	91.60	3.42	$1,001,943
Dec 2012	8,612	10,864	86.77	3.42	$784,420
Nov 2012	11,855	16,859	86.95	3.62	$1,091,905
Oct 2012	12,693	16,052	89.38	3.40	$1,189,072
Sep 2012	11,122	15,231	94.67	2.92	$1,097,370
Aug 2012	14,426	13,406	92.66	2.91	$1,375,700
Jul 2012	11,947	11,291	85.13	3.02	$1,051,156
Jun 2012	6,359	4,852	79.82	2.52	$519,798
May 2012	10,939	10,176	91.61	2.49	$1,027,443
Apr 2012	13,036	10,881	101.65	2.00	$1,346,837
Mar 2012	13,731	12,304	105.05	2.22	$1,469,782
Feb 2012	12,625	9,336	101.10	2.57	$1,300,383
Jan 2012	13,749	9,086	98.09	2.73	$1,373,481
Dec 2011	10,379	7,713	96.87	3.24	$1,030,402
Nov 2011	10,998	8,713	95.72	3.31	$1,081,580
Oct 2011	11,998	8,561	84.98	3.65	$1,050,825
Sep 2011	12,045	6,856	83.62	3.99	$1,034,530
Aug 2011	12,471	8,475	83.40	4.15	$1,075,247
Jul 2011	11,627	9,511	94.14	4.52	$1,137,529
Jun 2011	11,718	8,800	92.90	4.64	$1,129,433
May 2011	11,885	8,824	98.13	4.40	$1,205,143
Apr 2011	13,854	8,709	105.96	4.33	$1,505,708
Mar 2011	14,850	11,688	96.36	4.06	$1,478,368
Feb 2011	15,217	11,009	85.64	4.18	$1,349,201
Jan 2011	19,487	13,915	86.50	4.59	$1,749,478
Dec 2010	20,997	14,755	85.73	4.35	$1,864,224
Nov 2010	21,369	15,488	80.84	3.80	$1,786,252
Oct 2010	22,330	16,788	78.10	3.51	$1,802,880
Sep 2010	25,103	19,485	72.63	3.98	$1,900,771
Aug 2010	25,834	20,779	73.68	4.42	$1,995,279
Jul 2010	27,932	22,890	72.55	4.74	$2,134,885
Jun 2010	26,235	24,583	70.36	4.91	$1,966,607
May 2010	24,917	26,110	71.12	4.24	$1,882,679
Apr 2010	21,247	36,683	81.69	4.12	$1,886,900
Mar 2010	28,431	57,607	78.39	4.39	$2,481,524
Feb 2010	29,905	64,220	73.58	5.44	$2,549,918
Jan 2010	35,074	60,162	74.36	5.96	$2,966,914
Dec 2009	29,984	36,612	71.44	5.48	$2,342,828
Nov 2009	18,721	18,915	74.59	3.75	$1,467,359
Oct 2009	13,340	16,631	72.54	4.11	$1,036,041
Sep 2009	28,913	44,714	65.54	3.06	$2,031,995
Aug 2009	33,168	49,721	67.42	3.22	$2,396,214
Jul 2009	34,487	42,854	61.13	3.46	$2,256,658
Jun 2009	33,578	36,502	66.16	3.90	$2,363,696
May 2009	32,623	29,812	54.74	3.93	$1,902,817
Apr 2009	28,806	28,508	46.77	3.59	$1,449,529
Mar 2009	34,513	33,472	42.14	4.06	$1,590,241
Feb 2009	26,853	23,130	32.81	4.63	$988,208
Jan 2009	37,413	32,644	35.86	5.37	$1,516,961
Dec 2008	37,801	30,591	37.10	5.98	$1,585,264
Nov 2008	34,001	24,716	55.49	6.86	$2,056,276
Oct 2008	32,205	23,026	75.24	6.92	$2,582,490
Sep 2008	14,301	10,560	101.76	7.88	$1,538,452
Aug 2008	30,866	29,624	114.22	8.48	$3,776,816
Jul 2008	28,846	30,909	131.08	11.39	$4,133,170
Jun 2008	39,895	42,720	131.33	13.03	$5,796,164
May 2008	44,932	44,212	123.17	11.57	$6,045,997
Apr 2008	42,229	46,153	110.31	10.45	$5,140,804
Mar 2008	48,623	52,866	101.90	9.66	$5,465,584
Feb 2008	47,599	49,183	92.53	8.77	$4,835,699
Jan 2008	50,816	51,009	90.38	8.21	$5,011,316
Dec 2007	50,258	49,058	88.33	7.30	$4,797,509
Nov 2007	47,990	42,545	91.67	7.29	$4,709,469
Oct 2007	43,567	42,029	82.85	6.92	$3,900,450
Sep 2007	49,144	46,185	75.84	6.24	$4,015,467
Aug 2007	47,958	43,775	69.06	6.39	$3,591,612
Jul 2007	50,342	45,335	70.90	6.39	$3,858,845
Jun 2007	48,453	42,375	62.00	7.55	$3,323,952
May 2007	53,324	45,056	58.74	7.85	$3,485,774
Apr 2007	44,273	38,466	59.61	7.81	$2,939,348
Mar 2007	51,407	44,782	56.92	7.30	$3,253,083
Feb 2007	43,730	36,493	55.10	8.22	$2,709,349
Jan 2007	49,691	43,347	50.30	6.73	$2,791,046
Dec 2006	51,041	44,998	56.65	6.92	$3,202,789
Nov 2006	50,369	42,010	54.20	7.62	$3,050,010
Oct 2006	43,102	38,292	54.90	6.01	$2,596,580
Sep 2006	47,231	40,812	60.08	5.04	$3,043,217
Aug 2006	50,440	43,216	68.71	7.34	$3,782,934
Jul 2006	53,292	44,227	69.37	6.34	$3,977,387
Jun 2006	50,612	41,201	66.28	6.38	$3,617,586
May 2006	49,087	39,113	66.01	6.42	$3,491,534
Apr 2006	42,903	35,493	64.39	7.36	$3,023,770
Mar 2006	55,759	46,518	56.70	7.08	$3,491,019
Feb 2006	45,277	39,040	57.59	7.75	$2,910,106
Jan 2006	53,349	42,888	60.59	8.93	$3,615,548
Dec 2005	52,068	39,057	54.94	13.42	$3,384,581
Nov 2005	49,979	37,878	54.69	10.59	$3,134,419
Oct 2005	51,166	39,480	58.34	13.80	$3,529,681
Sep 2005	34,981	28,253	61.45	12.08	$2,490,850
Aug 2005	48,380	39,105	61.51	9.80	$3,358,959
Jul 2005	48,584	38,044	55.69	7.84	$3,004,046
Jun 2005	48,367	37,205	52.33	7.38	$2,805,657
May 2005	51,248	38,223	45.22	6.65	$2,571,662
Apr 2005	44,227	33,155	49.20	7.36	$2,420,005
Mar 2005	49,855	38,182	50.37	7.15	$2,784,384
Feb 2005	45,753	35,240	45.22	6.31	$2,291,383
Jan 2005	50,299	37,323	43.16	6.32	$2,406,868
Dec 2004	47,300	34,304	39.86	6.75	$2,116,967
Nov 2004	44,697	32,934	45.28	6.33	$2,232,366
Oct 2004	42,552	30,195	49.70	6.52	$2,311,558
Sep 2004	49,982	35,459	43.24	5.28	$2,348,583
Aug 2004	51,760	37,374	42.37	5.55	$2,400,522
Jul 2004	51,914	37,269	38.28	6.08	$2,214,019
Jun 2004	49,474	36,427	36.10	6.43	$2,020,347
May 2004	52,671	39,104	37.48	6.49	$2,228,073
Apr 2004	45,701	33,906	34.47	5.86	$1,773,950
Mar 2004	53,305	40,786	34.36	5.53	$2,057,112
Feb 2004	49,047	36,627	32.45	5.51	$1,793,376
Jan 2004	49,961	37,964	32.03	6.30	$1,839,410
Dec 2003	51,664	38,761	30.26	6.30	$1,807,611
Nov 2003	49,068	35,592	28.80	4.60	$1,576,709
Oct 2003	45,832	33,132	28.17	4.76	$1,448,784
Sep 2003	46,979	35,021	26.31	4.75	$1,402,345
Aug 2003	46,098	33,419	29.76	5.13	$1,543,307
Jul 2003	50,072	35,890	29.41	5.17	$1,658,199
Jun 2003	49,151	35,607	28.56	5.98	$1,616,788
May 2003	46,000	32,297	26.59	5.97	$1,416,040
Apr 2003	35,783	23,693	26.67	5.41	$1,082,447
Mar 2003	35,587	26,558	31.14	6.10	$1,270,078
Feb 2003	32,661	22,943	33.48	7.93	$1,275,334
Jan 2003	36,844	31,305	30.31	5.58	$1,291,487
Dec 2002	42,823	35,623	26.91	4.85	$1,325,272
Nov 2002	40,777	33,890	24.66	4.14	$1,145,762
Oct 2002	41,422	32,049	26.46	4.23	$1,231,565
Sep 2002	34,809	26,047	27.44	3.64	$1,049,845
Aug 2002	36,071	26,254	25.96	3.16	$1,019,475
Jul 2002	30,779	22,097	24.58	3.06	$824,204
Jun 2002	29,030	20,481	23.73	3.34	$757,252
May 2002	30,046	19,869	24.66	3.58	$812,145
Apr 2002	27,162	18,129	23.65	3.51	$706,056
Mar 2002	24,793	16,829	22.00	3.10	$597,662
Feb 2002	24,886	16,998	18.22	2.38	$493,805
Jan 2002	25,369	17,931	17.17	2.38	$478,184
Dec 2001	25,461	16,861	16.93	2.36	$470,921
Nov 2001	22,609	15,903	18.07	2.41	$446,800
Oct 2001	22,481	16,579	19.78	2.53	$486,600
Sep 2001	18,291	13,058	24.26	2.25	$473,137
Aug 2001	21,681	15,832	24.87	3.05	$587,544
Jul 2001	21,550	15,625	23.93	3.20	$565,646
Jun 2001	21,869	15,580	24.56	3.82	$596,683
May 2001	11,066	8,074	25.52	4.31	$317,182
Apr 2001	10,731	7,953	24.68	5.34	$307,273
Mar 2001	10,736	7,503	24.54	5.38	$303,801
Feb 2001	9,381	6,086	27.75	5.77	$295,421
Jan 2001	10,476	7,296	27.47	8.40	$349,053
Dec 2000	10,697	7,331	26.88	9.12	$354,412
Nov 2000	9,718	6,748	32.21	5.66	$351,197
Oct 2000	10,530	7,678	31.23	5.15	$368,359
Sep 2000	10,873	7,922	31.87	5.19	$387,610
Aug 2000	11,068	7,944	29.64	4.54	$364,127
Jul 2000	10,971	8,088	28.53	4.09	$346,081
Jun 2000	10,934	8,725	29.30	4.40	$358,732
May 2000	0	0	27.26	3.68	$0
Apr 2000	9,815	7,751	24.51	3.12	$264,718
Mar 2000	10,478	7,500	28.42	2.86	$319,233
Feb 2000	10,591	7,822	27.62	2.73	$313,850
Jan 2000	10,178	7,376	25.27	2.48	$275,494
Dec 1999	11,040	7,779	24.28	2.42	$286,905
Nov 1999	11,150	7,892	23.19	2.43	$277,778
Oct 1999	10,492	7,629	20.98	2.80	$241,512
Sep 1999	10,228	7,804	21.75	2.62	$242,897
Aug 1999	9,510	7,424	19.26	2.88	$204,511
Jul 1999	11,450	8,874	17.89	2.37	$225,893
Jun 1999	10,203	8,316	15.94	2.36	$182,279
May 1999	10,682	8,418	15.79	2.32	$188,207
Apr 1999	10,280	8,111	15.10	2.21	$173,137
Mar 1999	10,857	8,445	12.47	1.84	$150,911
Feb 1999	9,919	7,657	9.98	1.82	$112,910
Jan 1999	9,742	7,611	10.38	1.90	$115,582
Dec 1998	10,157	8,074	9.20	1.77	$107,762
Nov 1998	10,830	8,596	10.89	2.19	$136,727
Oct 1998	11,788	8,446	12.42	1.97	$163,039
Sep 1998	9,105	7,766	12.59	2.08	$130,806
Aug 1998	11,038	9,176	11.30	1.91	$142,231
Jul 1998	10,795	8,839	11.74	2.24	$146,509
Jun 1998	10,287	8,539	11.24	2.24	$134,730
May 1998	9,672	8,125	12.62	2.21	$139,987
Apr 1998	10,809	8,613	13.04	2.51	$162,528
Mar 1998	10,336	8,490	12.80	2.31	$151,908
Feb 1998	9,835	7,809	13.95	2.30	$155,152
Jan 1998	9,906	7,832	14.70	2.15	$162,495
Dec 1997	9,958	7,421	16.32	2.41	$180,407
Nov 1997	10,025	7,834	18.19	3.09	$206,548
Oct 1997	10,357	8,532	19.25	3.15	$226,247
Sep 1997	10,850	8,597	17.74	2.95	$217,882
Aug 1997	11,114	9,495	17.86	2.55	$222,753
Jul 1997	10,805	9,201	17.58	2.25	$210,626
Jun 1997	7,836	6,768	17.24	2.26	$150,369
May 1997	9,422	7,619	18.97	2.31	$196,324
Apr 1997	8,697	7,368	17.88	2.08	$170,848
Mar 1997	9,483	7,673	18.95	1.94	$194,582
Feb 1997	8,297	6,901	20.49	2.21	$185,228
Jan 1997	9,879	7,372	23.48	3.54	$258,054
Dec 1996	10,438	8,334	23.32	—	$243,414
Nov 1996	10,386	8,754	21.97	—	$228,180
Oct 1996	11,524	9,391	23.31	—	$268,624
Sep 1996	11,678	9,805	22.22	—	$259,485
Aug 1996	11,975	10,493	20.26	—	$242,614
Jul 1996	12,346	10,709	19.55	—	$241,364
Jun 1996	12,056	10,069	18.73	—	$225,809
May 1996	11,666	10,591	19.43	—	$226,670
Apr 1996	10,848	8,794	21.51	—	$233,340
Mar 1996	10,761	8,828	19.38	—	$208,548
Feb 1996	9,882	7,734	16.98	—	$167,796
Jan 1996	11,504	9,477	17.07	—	$196,373
Dec 1995	3,542	2,905	17.19	—	$60,887

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.

Mar 2018 — as filed, then multipliedworked

Oil                  171 bbl  × $ 61.22 =    $10,469
Casinghead gas         0 Mcf  × $  2.79 =         $0

────────────────────────────────────────────────────
Month total                                  $10,469

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/34785 is the state's own key, not one this site invented.