ALFONSO

Name: ALFONSO lease production and value, Jul 1999 onwards
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the CHARCO (9200) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 173999District 04Field 171305152 tax incentive programmesCondensateGasSave Export

Value, all time

$13.7 M

Jul 1999 – May 2026

Value, last 12 filed months

$47 k

at the published price for each month

Months reported

323

no gaps in the span

Streams

condensate, gas

The CHARCO (9200) 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 125 leases and 125 wells, and the rule below applies to all of them.

Discovered

1981-04-09

as the register files it

Field class

Gas

the register's own label

Between wells

—

no field rule filed

From a lease line

—

no field rule filed

The Commission's schedule remark for this field reads: “ALLOCATION FORMULA EFF. 100181 PER AMENDMENT TO SWR 28 & 29”

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

Programme	Filings	With an approval date	Dated	Docket
High Cost Gas	1	1	2002-09-25	149108
NGPA	1	none	—	—

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
Condensate	Disposition	12,843 bbl	$339,525
Gas	Production	3,478,729 Mcf	$13,364,858
Total			$13,704,383

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 27.0567, -99.1491. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

27.05667, -99.14910 · 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

0.0%

0 of 1 wells

With a plug date

0.0%

0 of 1 wells

Median depth

10,310 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

00.0%

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.

1100.0%

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 10,310 ft.

Completions filed

Jul 1999

1 of 1 wells

1 well


42-50533930	10	10,310 ft	Jul 1999	—	—

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 (323)

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

323 months


May 2026	0	1,005	106.41	3.05	$3,061
Apr 2026	0	967	98.93	2.87	$2,775
Mar 2026	0	1,016	89.75	3.15	$3,200
Feb 2026	0	911	63.50	3.75	$3,417
Jan 2026	0	1,034	59.13	8.00	$8,270
Dec 2025	1	1,037	56.66	4.41	$4,633
Nov 2025	0	1,019	58.59	3.93	$4,001
Oct 2025	0	1,057	59.38	3.30	$3,493
Sep 2025	1	1,022	62.74	3.08	$3,207
Aug 2025	0	1,089	63.93	3.01	$3,283
Jul 2025	1	1,100	66.74	3.32	$3,713
Jun 2025	1	1,088	66.48	3.13	$3,471
May 2025	0	1,127	60.55	3.23	$3,643
Apr 2025	1	1,115	62.36	3.54	$4,013
Mar 2025	1	1,169	67.70	4.27	$5,057
Feb 2025	0	1,113	70.88	4.34	$4,831
Jan 2025	0	1,198	74.32	4.28	$5,126
Dec 2024	1	1,292	68.99	3.12	$4,102
Nov 2024	0	1,276	69.05	2.20	$2,805
Oct 2024	0	1,331	71.37	2.28	$3,037
Sep 2024	0	1,292	69.61	2.36	$3,055
Aug 2024	0	1,433	75.63	2.06	$2,957
Jul 2024	0	1,509	79.93	2.15	$3,239
Jun 2024	0	1,608	78.08	2.63	$4,235
May 2024	0	1,970	78.81	2.20	$4,331
Apr 2024	0	2,407	84.45	1.66	$3,994
Mar 2024	0	1,072	80.30	1.55	$1,656
Feb 2024	0	884	76.09	1.78	$1,577
Jan 2024	0	968	73.02	3.30	$3,192
Dec 2023	0	963	71.26	2.61	$2,514
Nov 2023	0	881	77.89	2.81	$2,473
Oct 2023	0	977	85.44	3.09	$3,016
Sep 2023	0	943	89.04	2.74	$2,579
Aug 2023	0	1,008	80.52	2.67	$2,694
Jul 2023	0	1,006	74.85	2.64	$2,658
Jun 2023	0	962	68.96	2.26	$2,173
May 2023	0	1,013	70.62	2.23	$2,256
Apr 2023	0	982	78.12	2.24	$2,197
Mar 2023	0	1,015	72.85	2.39	$2,429
Feb 2023	0	959	75.11	2.47	$2,365
Jan 2023	0	1,051	76.53	3.39	$3,560
Dec 2022	0	1,043	76.41	5.73	$5,975
Nov 2022	0	1,030	85.00	5.65	$5,816
Oct 2022	0	1,086	87.18	5.86	$6,368
Sep 2022	0	1,056	84.88	8.16	$8,621
Aug 2022	0	1,084	94.52	9.13	$9,894
Jul 2022	0	1,071	101.58	7.54	$8,078
Jun 2022	0	1,121	115.09	7.98	$8,942
May 2022	1	1,157	109.37	8.43	$9,866
Apr 2022	0	1,122	104.22	6.84	$7,672
Mar 2022	0	1,145	108.88	5.08	$5,812
Feb 2022	0	1,041	91.05	4.86	$5,058
Jan 2022	0	1,181	81.84	4.54	$5,359
Dec 2021	0	1,238	71.32	3.90	$4,827
Nov 2021	0	1,190	77.43	5.24	$6,232
Oct 2021	0	1,243	79.79	5.71	$7,102
Sep 2021	0	1,213	69.86	5.35	$6,491
Aug 2021	0	1,267	66.02	4.22	$5,347
Jul 2021	0	1,328	70.78	3.98	$5,288
Jun 2021	0	1,195	69.49	3.38	$4,040
May 2021	0	1,215	63.48	3.02	$3,666
Apr 2021	0	1,103	60.36	2.76	$3,043
Mar 2021	0	1,132	61.30	2.72	$3,076
Feb 2021	0	1,031	57.80	5.55	$5,720
Jan 2021	0	1,191	50.41	2.81	$3,347
Dec 2020	0	1,177	44.64	2.68	$3,149
Nov 2020	0	1,135	38.77	2.71	$3,072
Oct 2020	0	1,225	36.97	2.48	$3,036
Sep 2020	0	1,147	37.09	1.99	$2,284
Aug 2020	0	1,204	39.98	2.39	$2,872
Jul 2020	0	1,178	38.37	1.83	$2,150
Jun 2020	0	1,092	34.90	1.69	$1,846
May 2020	0	1,174	16.92	1.81	$2,131
Apr 2020	0	1,234	14.75	1.80	$2,227
Mar 2020	0	1,255	30.34	1.86	$2,330
Feb 2020	0	1,185	49.88	1.98	$2,347
Jan 2020	2	1,342	57.25	2.09	$2,926
Dec 2019	0	1,367	59.01	2.30	$3,150
Nov 2019	0	1,285	55.30	2.75	$3,535
Oct 2019	0	1,339	53.47	2.42	$3,238
Sep 2019	0	1,277	55.05	2.66	$3,393
Aug 2019	0	1,507	53.11	2.30	$3,473
Jul 2019	0	1,470	56.27	2.46	$3,616
Jun 2019	0	1,507	52.78	2.49	$3,754
May 2019	0	1,579	58.48	2.74	$4,327
Apr 2019	0	1,534	62.63	2.75	$4,220
Mar 2019	0	1,757	56.80	3.06	$5,380
Feb 2019	0	1,876	50.85	2.79	$5,238
Jan 2019	0	1,523	46.03	3.23	$4,917
Dec 2018	0	1,300	46.59	4.19	$5,441
Nov 2018	0	1,164	52.93	4.24	$4,932
Oct 2018	0	1,081	61.44	3.40	$3,673
Sep 2018	0	1,195	59.54	3.11	$3,714
Aug 2018	0	924	59.40	3.07	$2,834
Jul 2018	0	1,079	65.14	2.93	$3,164
Jun 2018	0	1,109	60.18	3.08	$3,412
May 2018	0	1,263	65.38	2.90	$3,664
Apr 2018	0	1,169	63.84	2.90	$3,391
Mar 2018	0	1,173	61.22	2.79	$3,269
Feb 2018	1	1,109	61.78	2.77	$3,129
Jan 2018	0	952	62.87	4.01	$3,817
Dec 2017	0	530	57.27	2.92	$1,548
Nov 2017	0	461	55.42	3.12	$1,438
Oct 2017	1	342	49.29	2.98	$1,070
Sep 2017	0	685	47.52	3.09	$2,115
Aug 2017	0	1,230	45.37	3.00	$3,695
Jul 2017	1	1,373	43.87	3.09	$4,283
Jun 2017	0	1,341	42.49	3.09	$4,140
May 2017	0	1,391	45.37	3.26	$4,539
Apr 2017	0	1,359	47.93	3.21	$4,365
Mar 2017	0	1,334	46.77	2.98	$3,980
Feb 2017	0	1,194	50.45	2.95	$3,525
Jan 2017	0	1,343	49.41	3.42	$4,591
Dec 2016	0	1,281	48.76	3.72	$4,769
Nov 2016	0	1,330	42.49	2.64	$3,517
Oct 2016	0	1,349	46.19	3.09	$4,169
Sep 2016	0	1,406	41.55	3.10	$4,359
Aug 2016	0	1,363	41.44	2.92	$3,986
Jul 2016	0	1,410	41.62	2.92	$4,123
Jun 2016	1	1,489	45.35	2.69	$4,045
May 2016	0	1,563	42.52	1.99	$3,112
Apr 2016	0	1,384	36.56	1.99	$2,756
Mar 2016	1	1,424	33.01	1.79	$2,588
Feb 2016	0	1,296	26.47	2.06	$2,674
Jan 2016	0	1,405	27.35	2.36	$3,322
Dec 2015	0	1,482	32.36	2.00	$2,966
Nov 2015	0	1,458	38.79	2.17	$3,160
Oct 2015	0	1,524	43.55	2.43	$3,698
Sep 2015	0	1,544	42.99	2.76	$4,259
Aug 2015	0	1,588	40.16	2.87	$4,562
Jul 2015	0	1,629	48.15	2.95	$4,798
Jun 2015	0	1,482	56.15	2.88	$4,272
May 2015	0	1,672	55.21	2.96	$4,942
Apr 2015	0	1,645	49.82	2.71	$4,452
Mar 2015	0	1,692	42.89	2.93	$4,966
Feb 2015	1	1,514	44.66	2.98	$4,551
Jan 2015	0	1,636	43.43	3.10	$5,073
Dec 2014	1	1,705	54.69	3.59	$6,178
Nov 2014	0	1,561	70.46	4.25	$6,637
Oct 2014	0	1,805	78.30	3.90	$7,041
Sep 2014	0	1,526	86.16	4.05	$6,173
Aug 2014	0	1,786	89.39	4.04	$7,207
Jul 2014	0	2,066	96.56	4.18	$8,635
Jun 2014	0	1,937	98.16	4.74	$9,175
May 2014	0	2,002	94.73	4.73	$9,463
Apr 2014	0	1,826	95.94	4.81	$8,781
Mar 2014	0	1,973	95.89	5.06	$9,977
Feb 2014	1	1,808	97.40	6.19	$11,293
Jan 2014	0	1,844	90.40	4.86	$8,963
Dec 2013	2	1,930	91.82	4.35	$8,588
Nov 2013	2	1,974	88.85	3.74	$7,557
Oct 2013	0	2,054	97.42	3.78	$7,763
Sep 2013	2	2,078	104.11	3.72	$7,934
Aug 2013	0	1,935	104.25	3.52	$6,816
Jul 2013	8	2,150	102.52	3.72	$8,813
Jun 2013	0	2,037	94.40	3.93	$8,012
May 2013	0	2,131	94.83	4.15	$8,842
Apr 2013	2	1,964	93.96	4.28	$8,599
Mar 2013	5	2,301	93.62	3.91	$9,472
Feb 2013	0	1,929	91.23	3.42	$6,597
Jan 2013	4	2,167	91.60	3.42	$7,777
Dec 2012	6	2,221	86.77	3.42	$8,117
Nov 2012	0	2,206	86.95	3.62	$7,997
Oct 2012	5	2,109	89.38	3.40	$7,617
Sep 2012	2	1,980	94.67	2.92	$5,968
Aug 2012	6	2,301	92.66	2.91	$7,248
Jul 2012	0	2,254	85.13	3.02	$6,809
Jun 2012	0	2,218	79.82	2.52	$5,587
May 2012	5	2,255	91.61	2.49	$6,069
Apr 2012	0	2,149	101.65	2.00	$4,291
Mar 2012	6	2,123	105.05	2.22	$5,348
Feb 2012	0	2,322	101.10	2.57	$5,968
Jan 2012	0	2,305	98.09	2.73	$6,302
Dec 2011	5	2,405	96.87	3.24	$8,276
Nov 2011	0	2,119	95.72	3.31	$7,017
Oct 2011	6	2,222	84.98	3.65	$8,617
Sep 2011	0	2,143	83.62	3.99	$8,542
Aug 2011	0	2,418	83.40	4.15	$10,033
Jul 2011	3	2,303	94.14	4.52	$10,686
Jun 2011	0	2,477	92.90	4.64	$11,493
May 2011	5	2,407	98.13	4.40	$11,093
Apr 2011	5	2,413	105.96	4.33	$10,986
Mar 2011	0	2,545	96.36	4.06	$10,326
Feb 2011	0	2,225	85.64	4.18	$9,300
Jan 2011	4	2,822	86.50	4.59	$13,296
Dec 2010	2	2,406	85.73	4.35	$10,632
Nov 2010	0	2,464	80.84	3.80	$9,352
Oct 2010	4	2,378	78.10	3.51	$8,657
Sep 2010	0	2,257	72.63	3.98	$8,982
Aug 2010	5	2,542	73.68	4.42	$11,602
Jul 2010	0	2,580	72.55	4.74	$12,220
Jun 2010	3	2,580	70.36	4.91	$12,880
May 2010	0	2,053	71.12	4.24	$8,695
Apr 2010	5	1,943	81.69	4.12	$8,419
Mar 2010	0	2,096	78.39	4.39	$9,199
Feb 2010	0	2,125	73.58	5.44	$11,565
Jan 2010	2	2,485	74.36	5.96	$14,969
Dec 2009	2	2,724	71.44	5.48	$15,081
Nov 2009	0	2,565	74.59	3.75	$9,623
Oct 2009	0	2,205	72.54	4.11	$9,063
Sep 2009	7	2,609	65.54	3.06	$8,455
Aug 2009	0	2,752	67.42	3.22	$8,857
Jul 2009	0	2,806	61.13	3.46	$9,721
Jun 2009	0	2,672	66.16	3.90	$10,407
May 2009	0	2,272	54.74	3.93	$8,919
Apr 2009	22	2,467	46.77	3.59	$9,879
Mar 2009	0	2,721	42.14	4.06	$11,045
Feb 2009	4	2,458	32.81	4.63	$11,519
Jan 2009	0	2,673	35.86	5.37	$14,357
Dec 2008	0	3,033	37.10	5.98	$18,129
Nov 2008	4	3,244	55.49	6.86	$22,477
Oct 2008	3	2,341	75.24	6.92	$16,430
Sep 2008	0	2,706	101.76	7.88	$21,315
Aug 2008	0	3,223	114.22	8.48	$27,341
Jul 2008	0	2,908	131.08	11.39	$33,120
Jun 2008	0	3,008	131.33	13.03	$39,202
May 2008	1	3,331	123.17	11.57	$38,677
Apr 2008	4	2,853	110.31	10.45	$30,269
Mar 2008	0	3,362	101.90	9.66	$32,491
Feb 2008	53	2,923	92.53	8.77	$30,541
Jan 2008	0	3,041	90.38	8.21	$24,954
Dec 2007	0	2,809	88.33	7.30	$20,511
Nov 2007	0	3,391	91.67	7.29	$24,726
Oct 2007	0	3,371	82.85	6.92	$23,334
Sep 2007	27	3,654	75.84	6.24	$24,864
Aug 2007	0	3,148	69.06	6.39	$20,109
Jul 2007	0	3,472	70.90	6.39	$22,179
Jun 2007	0	3,346	62.00	7.55	$25,257
May 2007	0	3,758	58.74	7.85	$29,486
Apr 2007	0	3,252	59.61	7.81	$25,383
Mar 2007	0	3,554	56.92	7.30	$25,951
Feb 2007	0	3,469	55.10	8.22	$28,501
Jan 2007	168	4,059	50.30	6.73	$35,755
Dec 2006	0	3,828	56.65	6.92	$26,484
Nov 2006	0	4,133	54.20	7.62	$31,483
Oct 2006	0	4,423	54.90	6.01	$26,599
Sep 2006	0	5,002	60.08	5.04	$25,196
Aug 2006	2	4,369	68.71	7.34	$32,206
Jul 2006	0	4,600	69.37	6.34	$29,177
Jun 2006	0	3,783	66.28	6.38	$24,150
May 2006	0	5,206	66.01	6.42	$33,449
Apr 2006	0	5,020	64.39	7.36	$36,950
Mar 2006	0	5,551	56.70	7.08	$39,317
Feb 2006	0	4,113	57.59	7.75	$31,880
Jan 2006	0	5,776	60.59	8.93	$51,599
Dec 2005	187	7,288	54.94	13.42	$108,045
Nov 2005	5	8,971	54.69	10.59	$95,262
Oct 2005	3	11,136	58.34	13.80	$153,805
Sep 2005	0	9,940	61.45	12.08	$120,065
Aug 2005	111	10,797	61.51	9.80	$112,604
Jul 2005	0	12,259	55.69	7.84	$96,155
Jun 2005	173	11,877	52.33	7.38	$96,718
May 2005	0	5,017	45.22	6.65	$33,369
Apr 2005	0	4,352	49.20	7.36	$32,033
Mar 2005	0	5,484	50.37	7.15	$39,237
Feb 2005	9	4,590	45.22	6.31	$29,379
Jan 2005	0	7,112	43.16	6.32	$44,963
Dec 2004	0	6,029	39.86	6.75	$40,702
Nov 2004	0	6,080	45.28	6.33	$38,489
Oct 2004	0	7,256	49.70	6.52	$47,274
Sep 2004	0	7,200	43.24	5.28	$38,044
Aug 2004	0	6,574	42.37	5.55	$36,490
Jul 2004	1	9,088	38.28	6.08	$55,331
Jun 2004	2	6,237	36.10	6.43	$40,195
May 2004	0	6,827	37.48	6.49	$44,339
Apr 2004	0	6,674	34.47	5.86	$39,099
Mar 2004	0	7,528	34.36	5.53	$41,631
Feb 2004	0	9,005	32.45	5.51	$49,614
Jan 2004	3	9,015	32.03	6.30	$56,887
Dec 2003	0	8,031	30.26	6.30	$50,608
Nov 2003	0	7,546	28.80	4.60	$34,675
Oct 2003	171	10,194	28.17	4.76	$53,337
Sep 2003	0	7,431	26.31	4.75	$35,292
Aug 2003	0	9,843	29.76	5.13	$50,492
Jul 2003	1	8,394	29.41	5.17	$43,433
Jun 2003	0	8,314	28.56	5.98	$49,742
May 2003	0	14,018	26.59	5.97	$83,725
Apr 2003	0	19,068	26.67	5.41	$103,106
Mar 2003	182	21,165	31.14	6.10	$134,690
Feb 2003	7	20,930	33.48	7.93	$166,123
Jan 2003	1	25,555	30.31	5.58	$142,679
Dec 2002	186	32,633	26.91	4.85	$163,398
Nov 2002	1	29,057	24.66	4.14	$120,232
Oct 2002	184	12,989	26.46	4.23	$59,801
Sep 2002	0	13,391	27.44	3.64	$48,679
Aug 2002	1	15,307	25.96	3.16	$48,460
Jul 2002	0	20,454	24.58	3.06	$62,625
Jun 2002	182	22,859	23.73	3.34	$80,628
May 2002	185	26,172	24.66	3.58	$98,363
Apr 2002	1	34,855	23.65	3.51	$122,446
Mar 2002	187	39,723	22.00	3.10	$127,363
Feb 2002	183	13,843	18.22	2.38	$36,221
Jan 2002	0	7,555	17.17	2.38	$17,948
Dec 2001	0	10,983	16.93	2.36	$25,968
Nov 2001	0	10,208	18.07	2.41	$24,556
Oct 2001	0	12,777	19.78	2.53	$32,312
Sep 2001	184	11,712	24.26	2.25	$30,831
Aug 2001	0	13,510	24.87	3.05	$41,248
Jul 2001	0	14,073	23.93	3.20	$44,993
Jun 2001	0	15,302	24.56	3.82	$58,517
May 2001	0	17,749	25.52	4.31	$76,451
Apr 2001	187	24,423	24.68	5.34	$134,920
Mar 2001	187	26,497	24.54	5.38	$147,049
Feb 2001	3	26,182	27.75	5.77	$151,077
Jan 2001	185	34,483	27.47	8.40	$294,696
Dec 2000	1	37,454	26.88	9.12	$341,701
Nov 2000	186	43,039	32.21	5.66	$249,506
Oct 2000	185	41,963	31.23	5.15	$221,698
Sep 2000	186	42,916	31.87	5.19	$228,512
Aug 2000	185	50,557	29.64	4.54	$235,050
Jul 2000	185	61,171	28.53	4.09	$255,452
Jun 2000	367	67,006	29.30	4.40	$305,395
May 2000	183	73,304	27.26	3.68	$274,729
Apr 2000	368	80,389	24.51	3.12	$259,512
Mar 2000	369	106,518	28.42	2.86	$315,102
Feb 2000	370	125,136	27.62	2.73	$351,403
Jan 2000	555	179,440	25.27	2.48	$459,126
Dec 1999	737	203,413	24.28	2.42	$510,911
Nov 1999	911	207,047	23.19	2.43	$525,076
Oct 1999	1,469	264,290	20.98	2.80	$771,812
Sep 1999	1,462	257,987	21.75	2.62	$707,428
Aug 1999	1,644	275,148	19.26	2.88	$822,879
Jul 1999	349	66,677	17.89	2.37	$164,426

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 2026 — as filed, then multipliedworked

Condensate             0 bbl  × $106.41 =         $0
Gas                1,005 Mcf  × $  3.05 =     $3,061

────────────────────────────────────────────────────
Month total                                   $3,061

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. 04/G/173999 is the state's own key, not one this site invented.