ZYBACH

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

Operated by DEVON ENERGY PRODUCTION CO, L.P. (P-5 216378) in the BUFFALO WALLOW (MORROW) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 49839District 10Field 13147666Hydrogen sulphide fieldCondensateGasSave Export

Value, all time

$7.6 M

Jan 1993 – Mar 2007

Value, last 12 filed months

$403 k

at the published price for each month

Months reported

171

no gaps in the span

Streams

condensate, gas

The BUFFALO WALLOW (MORROW) 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 38 leases and 38 wells, and the rule below applies to all of them.

Discovered

1969-08-29

as the register files it

Field class

Gas

the register's own label

Between wells

3,735 ft

minimum

From a lease line

1,867 ft

minimum

A drilling unit in this field needs at least 640 acres. The field rule took effect on 2006-05-16.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

The Commission's schedule remark for this field reads: “AND HORIZONTAL WELLS ON THE SAME LEASE OR POOLED UNIT.”

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	22 bbl	$483
Gas	Production	3,790,984 Mcf	$7,570,657
Total			$7,571,141

1,669,532 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 35.6289, -100.2429. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

35.62889, -100.24294 · 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

20,600 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 20,600 ft.

Completions filed

Mar 2007

1 of 1 wells

1 well


42-21130052	1026	20,600 ft	Mar 2007	—	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 (171)

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

171 months


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	7,643	54.90	6.01	$45,963
Sep 2006	0	7,959	60.08	5.04	$40,091
Aug 2006	0	6,992	68.71	7.34	$51,321
Jul 2006	0	9,929	69.37	6.34	$62,977
Jun 2006	0	9,508	66.28	6.38	$60,698
May 2006	0	10,366	66.01	6.42	$66,602
Apr 2006	0	10,226	64.39	7.36	$75,268
Mar 2006	0	11,436	56.70	7.08	$81,000
Feb 2006	0	2,926	57.59	7.75	$22,680
Jan 2006	0	1,315	60.59	8.93	$11,747
Dec 2005	0	1,044	54.94	13.42	$14,006
Nov 2005	0	1,565	54.69	10.59	$16,571
Oct 2005	0	0	58.34	13.80	$0
Sep 2005	0	606	61.45	12.08	$7,320
Aug 2005	0	1,929	61.51	9.80	$18,898
Jul 2005	0	3,366	55.69	7.84	$26,402
Jun 2005	0	2,385	52.33	7.38	$17,604
May 2005	0	4,927	45.22	6.65	$32,770
Apr 2005	0	3,253	49.20	7.36	$23,944
Mar 2005	0	1,804	50.37	7.15	$12,907
Feb 2005	0	2,259	45.22	6.31	$14,259
Jan 2005	0	1,803	43.16	6.32	$11,399
Dec 2004	0	2,750	39.86	6.75	$18,565
Nov 2004	0	0	45.28	6.33	$0
Oct 2004	0	1,762	49.70	6.52	$11,480
Sep 2004	0	3,272	43.24	5.28	$17,289
Aug 2004	0	4,074	42.37	5.55	$22,613
Jul 2004	0	10,359	38.28	6.08	$63,026
Jun 2004	0	10,592	36.10	6.43	$68,139
May 2004	0	13,167	37.48	6.49	$85,514
Apr 2004	0	13,151	34.47	5.86	$77,045
Mar 2004	0	13,705	34.36	5.53	$75,791
Feb 2004	0	13,227	32.45	5.51	$72,876
Jan 2004	0	12,210	32.03	6.30	$76,919
Dec 2003	0	12,224	30.26	6.30	$77,031
Nov 2003	0	13,435	28.80	4.60	$61,736
Oct 2003	0	14,525	28.17	4.76	$69,134
Sep 2003	0	12,049	26.31	4.75	$57,225
Aug 2003	0	8,749	29.76	5.13	$44,880
Jul 2003	0	14,118	29.41	5.17	$73,002
Jun 2003	0	14,075	28.56	5.98	$84,210
May 2003	0	14,918	26.59	5.97	$89,100
Apr 2003	0	14,777	26.67	5.41	$79,903
Mar 2003	0	15,428	31.14	6.10	$94,050
Feb 2003	0	13,630	33.48	7.93	$108,030
Jan 2003	0	14,297	30.31	5.58	$79,806
Dec 2002	0	15,541	26.91	4.85	$75,432
Nov 2002	0	14,699	24.66	4.14	$60,809
Oct 2002	0	14,817	26.46	4.23	$62,663
Sep 2002	0	15,785	27.44	3.64	$57,382
Aug 2002	0	16,306	25.96	3.16	$51,595
Jul 2002	0	17,104	24.58	3.06	$52,368
Jun 2002	0	18,317	23.73	3.34	$61,147
May 2002	0	17,363	24.66	3.58	$62,229
Apr 2002	0	17,372	23.65	3.51	$61,016
Mar 2002	0	18,284	22.00	3.10	$56,730
Feb 2002	0	17,193	18.22	2.38	$40,845
Jan 2002	0	17,637	17.17	2.38	$41,900
Dec 2001	0	17,859	16.93	2.36	$42,226
Nov 2001	0	18,235	18.07	2.41	$43,865
Oct 2001	0	18,669	19.78	2.53	$47,212
Sep 2001	0	18,723	24.26	2.25	$42,151
Aug 2001	0	21,022	24.87	3.05	$64,184
Jul 2001	0	20,183	23.93	3.20	$64,527
Jun 2001	0	18,451	24.56	3.82	$70,560
May 2001	0	20,010	25.52	4.31	$86,189
Apr 2001	0	20,862	24.68	5.34	$111,305
Mar 2001	0	22,470	24.54	5.38	$120,809
Feb 2001	0	15,175	27.75	5.77	$87,515
Jan 2001	0	22,469	27.47	8.40	$188,712
Dec 2000	0	21,296	26.88	9.12	$194,273
Nov 2000	0	22,111	32.21	5.66	$125,104
Oct 2000	0	23,517	31.23	5.15	$121,007
Sep 2000	0	20,696	31.87	5.19	$107,340
Aug 2000	0	25,196	29.64	4.54	$114,409
Jul 2000	0	22,553	28.53	4.09	$92,236
Jun 2000	0	24,912	29.30	4.40	$109,544
May 2000	0	25,742	27.26	3.68	$94,724
Apr 2000	0	25,554	24.51	3.12	$79,626
Mar 2000	0	25,909	28.42	2.86	$74,093
Feb 2000	0	25,010	27.62	2.73	$68,190
Jan 2000	0	26,827	25.27	2.48	$66,544
Dec 1999	0	26,361	24.28	2.42	$63,892
Nov 1999	0	26,927	23.19	2.43	$65,540
Oct 1999	0	28,317	20.98	2.80	$79,393
Sep 1999	0	27,563	21.75	2.62	$72,183
Aug 1999	0	29,112	19.26	2.88	$83,714
Jul 1999	0	25,350	17.89	2.37	$60,140
Jun 1999	0	27,258	15.94	2.36	$64,386
May 1999	0	28,893	15.79	2.32	$67,061
Apr 1999	0	27,663	15.10	2.21	$61,081
Mar 1999	0	29,791	12.47	1.84	$54,766
Feb 1999	0	26,358	9.98	1.82	$47,913
Jan 1999	0	27,898	10.38	1.90	$53,005
Dec 1998	0	26,237	9.20	1.77	$46,527
Nov 1998	0	30,982	10.89	2.19	$67,718
Oct 1998	0	31,013	12.42	1.97	$61,071
Sep 1998	0	31,487	12.59	2.08	$65,575
Aug 1998	0	18,033	11.30	1.91	$34,395
Jul 1998	0	17,994	11.74	2.24	$40,257
Jun 1998	0	28,355	11.24	2.24	$63,438
May 1998	0	31,668	12.62	2.21	$69,870
Apr 1998	0	28,182	13.04	2.51	$70,605
Mar 1998	0	30,574	12.80	2.31	$70,609
Feb 1998	0	29,823	13.95	2.30	$68,567
Jan 1998	0	32,753	14.70	2.15	$70,576
Dec 1997	0	34,922	16.32	2.41	$84,200
Nov 1997	0	32,783	18.19	3.09	$101,242
Oct 1997	0	35,185	19.25	3.15	$110,826
Sep 1997	0	31,649	17.74	2.95	$93,519
Aug 1997	0	31,297	17.86	2.55	$79,956
Jul 1997	0	29,255	17.58	2.25	$65,734
Jun 1997	0	25,646	17.24	2.26	$57,888
May 1997	0	25,027	18.97	2.31	$57,775
Apr 1997	0	25,500	17.88	2.08	$53,111
Mar 1997	0	31,988	18.95	1.94	$62,029
Feb 1997	0	29,714	20.49	2.21	$65,546
Jan 1997	0	32,290	23.48	3.54	$114,297
Dec 1996	0	30,619	23.32	—	$0
Nov 1996	22	36,223	21.97	—	$483
Oct 1996	0	31,940	23.31	—	$0
Sep 1996	0	36,183	22.22	—	$0
Aug 1996	0	37,764	20.26	—	$0
Jul 1996	0	32,717	19.55	—	$0
Jun 1996	0	25,279	18.73	—	$0
May 1996	0	32,263	19.43	—	$0
Apr 1996	0	29,788	21.51	—	$0
Mar 1996	0	33,561	19.38	—	$0
Feb 1996	0	27,957	16.98	—	$0
Jan 1996	0	5,328	17.07	—	$0
Dec 1995	0	40,714	17.19	—	$0
Nov 1995	0	36,967	16.00	—	$0
Oct 1995	0	34,656	15.43	—	$0
Sep 1995	0	31,285	16.18	—	$0
Aug 1995	0	30,267	15.92	—	$0
Jul 1995	0	32,023	15.24	—	$0
Jun 1995	0	32,686	16.41	—	$0
May 1995	0	24,520	17.56	—	$0
Apr 1995	0	38,428	17.73	—	$0
Mar 1995	0	44,474	16.44	—	$0
Feb 1995	0	37,169	16.58	—	$0
Jan 1995	0	43,451	15.92	—	$0
Dec 1994	0	43,900	15.03	—	$0
Nov 1994	0	44,141	15.90	—	$0
Oct 1994	0	46,264	15.58	—	$0
Sep 1994	0	33,107	15.29	—	$0
Aug 1994	0	42,176	16.13	—	$0
Jul 1994	0	37,517	17.56	—	$0
Jun 1994	0	40,526	17.09	—	$0
May 1994	0	20,402	15.88	—	$0
Apr 1994	0	40,664	14.14	—	$0
Mar 1994	0	35,506	12.46	—	$0
Feb 1994	0	22,800	12.50	—	$0
Jan 1994	0	44,830	12.66	—	$0
Dec 1993	0	45,216	12.33	—	$0
Nov 1993	0	32,461	14.49	—	$0
Oct 1993	0	27,669	15.85	—	$0
Sep 1993	0	40,848	15.03	—	$0
Aug 1993	0	30,250	15.66	—	$0
Jul 1993	0	29,836	15.46	—	$0
Jun 1993	0	46,211	16.79	—	$0
May 1993	0	26,442	17.68	—	$0
Apr 1993	0	33,733	18.05	—	$0
Mar 1993	0	45,194	18.14	—	$0
Feb 1993	0	38,012	17.90	—	$0
Jan 1993	0	35,565	16.93	—	$0

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.

Oct 2006 — as filed, then multipliedworked

Condensate             0 bbl  × $ 54.90 =         $0
Gas                7,643 Mcf  × $  6.01 =    $45,963

────────────────────────────────────────────────────
Month total                                  $45,963

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. 10/G/49839 is the state's own key, not one this site invented.