MAHAFFEY ESTATE

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

Operated by RANGE PRODUCTION COMPANY (P-5 691703) in the DECK (CISCO) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 25129District 08Field 23842500NGPA filingOilCasinghead gasSave Export

Value, all time

$597 k

Jan 1993 – Jun 2008

Value, last 12 filed months

$552

at the published price for each month

Months reported

186

no gaps in the span

Streams

oil, casinghead gas

The DECK (CISCO) 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 11 leases and 13 wells, and the rule below applies to all of them.

Discovered

1972-09-28

as the register files it

Field class

Oil and gas

the register's own label

Between wells

—

no field rule filed

From a lease line

—

no field rule filed

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
NGPA	2	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
Oil	Disposition	2,166 bbl	$56,262
Casinghead gas	Production	142,151 Mcf	$540,662
Total			$596,924

30,101 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 31.6453, -101.2259. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.64527, -101.22595 · 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

8,330 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 8,330 ft.

Completions filed

Apr 1978

1 of 1 wells

1 well


42-43130634	1	8,330 ft	Apr 1978	—	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 (186)

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

186 months


Jun 2008	0	0	131.33	13.03	$0
May 2008	0	0	123.17	11.57	$0
Apr 2008	5	0	110.31	10.45	$552
Mar 2008	0	0	101.90	9.66	$0
Feb 2008	0	0	92.53	8.77	$0
Jan 2008	0	0	90.38	8.21	$0
Dec 2007	0	0	88.33	7.30	$0
Nov 2007	0	0	91.67	7.29	$0
Oct 2007	0	0	82.85	6.92	$0
Sep 2007	0	0	75.84	6.24	$0
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	78	0	59.61	7.81	$4,650
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	1,049	66.28	6.38	$6,697
May 2006	0	1,167	66.01	6.42	$7,498
Apr 2006	0	1,110	64.39	7.36	$8,170
Mar 2006	0	1,066	56.70	7.08	$7,550
Feb 2006	0	967	57.59	7.75	$7,495
Jan 2006	77	913	60.59	8.93	$12,822
Dec 2005	0	860	54.94	13.42	$11,537
Nov 2005	0	1,079	54.69	10.59	$11,425
Oct 2005	0	1,097	58.34	13.80	$15,134
Sep 2005	39	1,159	61.45	12.08	$16,396
Aug 2005	0	1,475	61.51	9.80	$14,450
Jul 2005	80	784	55.69	7.84	$10,605
Jun 2005	0	760	52.33	7.38	$5,610
May 2005	0	1,185	45.22	6.65	$7,882
Apr 2005	0	1,153	49.20	7.36	$8,487
Mar 2005	0	1,187	50.37	7.15	$8,493
Feb 2005	0	1,037	45.22	6.31	$6,545
Jan 2005	0	1,063	43.16	6.32	$6,721
Dec 2004	69	1,075	39.86	6.75	$10,008
Nov 2004	0	1,033	45.28	6.33	$6,539
Oct 2004	0	1,102	49.70	6.52	$7,180
Sep 2004	0	1,105	43.24	5.28	$5,839
Aug 2004	0	1,093	42.37	5.55	$6,067
Jul 2004	0	1,208	38.28	6.08	$7,350
Jun 2004	0	1,153	36.10	6.43	$7,417
May 2004	0	1,269	37.48	6.49	$8,242
Apr 2004	81	1,143	34.47	5.86	$9,488
Mar 2004	0	1,280	34.36	5.53	$7,079
Feb 2004	0	1,185	32.45	5.51	$6,529
Jan 2004	0	1,280	32.03	6.30	$8,064
Dec 2003	0	1,267	30.26	6.30	$7,984
Nov 2003	0	1,092	28.80	4.60	$5,018
Oct 2003	0	0	28.17	4.76	$0
Sep 2003	0	773	26.31	4.75	$3,671
Aug 2003	0	1,413	29.76	5.13	$7,248
Jul 2003	0	1,550	29.41	5.17	$8,015
Jun 2003	79	1,172	28.56	5.98	$9,268
May 2003	0	1,268	26.59	5.97	$7,573
Apr 2003	0	0	26.67	5.41	$0
Mar 2003	0	1,127	31.14	6.10	$6,870
Feb 2003	0	1,094	33.48	7.93	$8,671
Jan 2003	0	1,211	30.31	5.58	$6,760
Dec 2002	111	1,237	26.91	4.85	$8,991
Nov 2002	0	1,200	24.66	4.14	$4,964
Oct 2002	0	1,268	26.46	4.23	$5,363
Sep 2002	0	1,258	27.44	3.64	$4,573
Aug 2002	0	1,344	25.96	3.16	$4,253
Jul 2002	0	1,258	24.58	3.06	$3,852
Jun 2002	0	1,298	23.73	3.34	$4,333
May 2002	0	1,337	24.66	3.58	$4,792
Apr 2002	82	1,266	23.65	3.51	$6,386
Mar 2002	0	1,175	22.00	3.10	$3,646
Feb 2002	0	1,123	18.22	2.38	$2,668
Jan 2002	0	1,342	17.17	2.38	$3,188
Dec 2001	0	1,324	16.93	2.36	$3,130
Nov 2001	0	1,264	18.07	2.41	$3,041
Oct 2001	0	1,339	19.78	2.53	$3,386
Sep 2001	82	1,338	24.26	2.25	$5,002
Aug 2001	0	1,365	24.87	3.05	$4,168
Jul 2001	0	1,367	23.93	3.20	$4,370
Jun 2001	29	1,332	24.56	3.82	$5,806
May 2001	0	1,410	25.52	4.31	$6,073
Apr 2001	0	1,361	24.68	5.34	$7,261
Mar 2001	89	1,391	24.54	5.38	$9,663
Feb 2001	0	1,402	27.75	5.77	$8,085
Jan 2001	0	750	27.47	8.40	$6,299
Dec 2000	0	903	26.88	9.12	$8,238
Nov 2000	0	1,113	32.21	5.66	$6,297
Oct 2000	0	1,269	31.23	5.15	$6,530
Sep 2000	0	1,468	31.87	5.19	$7,614
Aug 2000	84	1,534	29.64	4.54	$9,455
Jul 2000	0	0	28.53	4.09	$0
Jun 2000	0	1,242	29.30	4.40	$5,461
May 2000	0	1,255	27.26	3.68	$4,618
Apr 2000	0	1,481	24.51	3.12	$4,615
Mar 2000	83	1,530	28.42	2.86	$6,734
Feb 2000	0	697	27.62	2.73	$1,900
Jan 2000	0	1,208	25.27	2.48	$2,996
Dec 1999	0	1,218	24.28	2.42	$2,952
Nov 1999	0	1,094	23.19	2.43	$2,663
Oct 1999	86	1,248	20.98	2.80	$5,303
Sep 1999	0	963	21.75	2.62	$2,522
Aug 1999	81	1,044	19.26	2.88	$4,562
Jul 1999	0	1,054	17.89	2.37	$2,500
Jun 1999	84	1,041	15.94	2.36	$3,798
May 1999	0	1,114	15.79	2.32	$2,586
Apr 1999	0	1,377	15.10	2.21	$3,040
Mar 1999	0	1,281	12.47	1.84	$2,355
Feb 1999	87	1,018	9.98	1.82	$2,719
Jan 1999	0	1,061	10.38	1.90	$2,016
Dec 1998	86	572	9.20	1.77	$1,806
Nov 1998	0	475	10.89	2.19	$1,038
Oct 1998	122	484	12.42	1.97	$2,468
Sep 1998	0	285	12.59	2.08	$594
Aug 1998	0	217	11.30	1.91	$414
Jul 1998	0	350	11.74	2.24	$783
Jun 1998	23	302	11.24	2.24	$934
May 1998	0	348	12.62	2.21	$768
Apr 1998	0	340	13.04	2.51	$852
Mar 1998	0	267	12.80	2.31	$617
Feb 1998	13	372	13.95	2.30	$1,037
Jan 1998	0	351	14.70	2.15	$756
Dec 1997	0	419	16.32	2.41	$1,010
Nov 1997	0	539	18.19	3.09	$1,665
Oct 1997	0	206	19.25	3.15	$649
Sep 1997	0	23	17.74	2.95	$68
Aug 1997	55	76	17.86	2.55	$1,176
Jul 1997	0	198	17.58	2.25	$445
Jun 1997	0	501	17.24	2.26	$1,131
May 1997	14	480	18.97	2.31	$1,374
Apr 1997	0	582	17.88	2.08	$1,212
Mar 1997	14	662	18.95	1.94	$1,549
Feb 1997	0	526	20.49	2.21	$1,160
Jan 1997	0	509	23.48	3.54	$1,802
Dec 1996	13	591	23.32	—	$303
Nov 1996	0	537	21.97	—	$0
Oct 1996	0	388	23.31	—	$0
Sep 1996	14	502	22.22	—	$311
Aug 1996	14	439	20.26	—	$284
Jul 1996	0	503	19.55	—	$0
Jun 1996	0	509	18.73	—	$0
May 1996	14	447	19.43	—	$272
Apr 1996	0	581	21.51	—	$0
Mar 1996	14	491	19.38	—	$271
Feb 1996	0	518	16.98	—	$0
Jan 1996	0	603	17.07	—	$0
Dec 1995	14	624	17.19	—	$241
Nov 1995	0	649	16.00	—	$0
Oct 1995	0	790	15.43	—	$0
Sep 1995	12	816	16.18	—	$194
Aug 1995	14	825	15.92	—	$223
Jul 1995	0	916	15.24	—	$0
Jun 1995	13	764	16.41	—	$213
May 1995	17	761	17.56	—	$299
Apr 1995	0	705	17.73	—	$0
Mar 1995	14	687	16.44	—	$230
Feb 1995	0	645	16.58	—	$0
Jan 1995	15	592	15.92	—	$239
Dec 1994	15	613	15.03	—	$225
Nov 1994	0	655	15.90	—	$0
Oct 1994	14	562	15.58	—	$218
Sep 1994	0	587	15.29	—	$0
Aug 1994	14	567	16.13	—	$226
Jul 1994	13	628	17.56	—	$228
Jun 1994	14	700	17.09	—	$239
May 1994	14	612	15.88	—	$222
Apr 1994	0	643	14.14	—	$0
Mar 1994	14	607	12.46	—	$174
Feb 1994	14	620	12.50	—	$175
Jan 1994	13	650	12.66	—	$165
Dec 1993	14	645	12.33	—	$173
Nov 1993	0	674	14.49	—	$0
Oct 1993	14	794	15.85	—	$222
Sep 1993	14	593	15.03	—	$210
Aug 1993	15	326	15.66	—	$235
Jul 1993	0	675	15.46	—	$0
Jun 1993	11	670	16.79	—	$185
May 1993	13	754	17.68	—	$230
Apr 1993	11	557	18.05	—	$199
Mar 1993	16	662	18.14	—	$290
Feb 1993	16	679	17.90	—	$286
Jan 1993	16	745	16.93	—	$271

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.

Apr 2008 — as filed, then multipliedworked

Oil                    5 bbl  × $110.31 =       $552
Casinghead gas         0 Mcf  × $ 10.45 =         $0

────────────────────────────────────────────────────
Month total                                     $552

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/25129 is the state's own key, not one this site invented.