YELDERMAN UNIT

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

Operated by GEOSOUTHERN ENERGY CORPORATION (P-5 301287) in the GIDDINGS (AUSTIN CHALK-3) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 18268District 03Field 34733500NGPA filingOilCasinghead gasSave Export

Value, all time

$579 k

Jan 1993 – Jun 2015

Value, last 12 filed months

at the published price for each month

Months reported

270

no gaps in the span

Streams

oil, casinghead gas

The GIDDINGS (AUSTIN CHALK-3) 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 5,900 leases and 6,985 wells, and the rule below applies to all of them.

Discovered

1960-10-29

as the register files it

Field class

Oil and gas

the register's own label

Between wells

0 ft

minimum

From a lease line

330 ft

minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2025-09-30.

The Commission's schedule remark for this field reads: “DKT OG-25-00028011: UFT FIELD, ALLOCATION FORMULA SUSPENDED”

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	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
Oil	Disposition	24,851 bbl	$555,516
Casinghead gas	Production	35,644 Mcf	$23,253
Total			$578,769

25,724 Mcf of this lease's gas, across 47 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 30.0418, -97.0052. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

30.04177, -97.00516 · 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

100.0%

1 of 1 wells

Median depth

8,417 ft

1 wells filed one

Completion to plug

29.9 years

median over 1 well

What the state filed about each well

On the RRC proration schedule

1100.0%

A plug date is filed

1100.0%

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

1100.0%

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 8,417 ft.

Completions filed

Jan 1985

1 of 1 wells

Plug dates filed

Dec 2014

1 of 1 wells

Last completion to plug: a median of 29.9 years across the 1 well that filed both dates, with the middle half between 29.9 years and 29.9 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well


42-28731731	1	8,417 ft	Jan 1985	Dec 2014	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


Jun 2015	0	0	56.15	2.88	$0
May 2015	0	0	55.21	2.96	$0
Apr 2015	0	0	49.82	2.71	$0
Mar 2015	0	0	42.89	2.93	$0
Feb 2015	0	0	44.66	2.98	$0
Jan 2015	0	0	43.43	3.10	$0
Dec 2014	0	0	54.69	3.59	$0
Nov 2014	0	0	70.46	4.25	$0
Oct 2014	0	0	78.30	3.90	$0
Sep 2014	0	0	86.16	4.05	$0
Aug 2014	0	0	89.39	4.04	$0
Jul 2014	0	0	96.56	4.18	$0
Jun 2014	0	0	98.16	4.74	$0
May 2014	0	0	94.73	4.73	$0
Apr 2014	0	0	95.94	4.81	$0
Mar 2014	0	0	95.89	5.06	$0
Feb 2014	0	0	97.40	6.19	$0
Jan 2014	0	0	90.40	4.86	$0
Dec 2013	0	0	91.82	4.35	$0
Nov 2013	0	0	88.85	3.74	$0
Oct 2013	0	0	97.42	3.78	$0
Sep 2013	0	0	104.11	3.72	$0
Aug 2013	0	0	104.25	3.52	$0
Jul 2013	0	0	102.52	3.72	$0
Jun 2013	0	0	94.40	3.93	$0
May 2013	0	0	94.83	4.15	$0
Apr 2013	0	0	93.96	4.28	$0
Mar 2013	0	0	93.62	3.91	$0
Feb 2013	0	0	91.23	3.42	$0
Jan 2013	0	0	91.60	3.42	$0
Dec 2012	0	0	86.77	3.42	$0
Nov 2012	0	0	86.95	3.62	$0
Oct 2012	0	0	89.38	3.40	$0
Sep 2012	0	0	94.67	2.92	$0
Aug 2012	0	0	92.66	2.91	$0
Jul 2012	0	0	85.13	3.02	$0
Jun 2012	0	0	79.82	2.52	$0
May 2012	0	0	91.61	2.49	$0
Apr 2012	0	0	101.65	2.00	$0
Mar 2012	0	0	105.05	2.22	$0
Feb 2012	0	0	101.10	2.57	$0
Jan 2012	0	0	98.09	2.73	$0
Dec 2011	0	0	96.87	3.24	$0
Nov 2011	0	0	95.72	3.31	$0
Oct 2011	0	0	84.98	3.65	$0
Sep 2011	0	0	83.62	3.99	$0
Aug 2011	0	0	83.40	4.15	$0
Jul 2011	0	0	94.14	4.52	$0
Jun 2011	0	0	92.90	4.64	$0
May 2011	41	0	98.13	4.40	$4,023
Apr 2011	0	0	105.96	4.33	$0
Mar 2011	0	0	96.36	4.06	$0
Feb 2011	0	0	85.64	4.18	$0
Jan 2011	0	0	86.50	4.59	$0
Dec 2010	0	0	85.73	4.35	$0
Nov 2010	0	0	80.84	3.80	$0
Oct 2010	0	0	78.10	3.51	$0
Sep 2010	0	0	72.63	3.98	$0
Aug 2010	0	0	73.68	4.42	$0
Jul 2010	0	0	72.55	4.74	$0
Jun 2010	0	0	70.36	4.91	$0
May 2010	0	0	71.12	4.24	$0
Apr 2010	0	0	81.69	4.12	$0
Mar 2010	0	0	78.39	4.39	$0
Feb 2010	0	0	73.58	5.44	$0
Jan 2010	0	0	74.36	5.96	$0
Dec 2009	0	0	71.44	5.48	$0
Nov 2009	0	0	74.59	3.75	$0
Oct 2009	0	0	72.54	4.11	$0
Sep 2009	0	0	65.54	3.06	$0
Aug 2009	0	0	67.42	3.22	$0
Jul 2009	0	0	61.13	3.46	$0
Jun 2009	0	0	66.16	3.90	$0
May 2009	163	0	54.74	3.93	$8,923
Apr 2009	0	0	46.77	3.59	$0
Mar 2009	1	0	42.14	4.06	$42
Feb 2009	3	0	32.81	4.63	$98
Jan 2009	1	0	35.86	5.37	$36
Dec 2008	0	0	37.10	5.98	$0
Nov 2008	4	0	55.49	6.86	$222
Oct 2008	1	0	75.24	6.92	$75
Sep 2008	0	0	101.76	7.88	$0
Aug 2008	0	0	114.22	8.48	$0
Jul 2008	1	0	131.08	11.39	$131
Jun 2008	1	0	131.33	13.03	$131
May 2008	0	0	123.17	11.57	$0
Apr 2008	1	0	110.31	10.45	$110
Mar 2008	0	0	101.90	9.66	$0
Feb 2008	179	0	92.53	8.77	$16,563
Jan 2008	0	0	90.38	8.21	$0
Dec 2007	0	0	88.33	7.30	$0
Nov 2007	1	0	91.67	7.29	$92
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	177	0	62.00	7.55	$10,974
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	177	0	60.08	5.04	$10,634
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	139	0	54.94	13.42	$7,637
Nov 2005	0	0	54.69	10.59	$0
Oct 2005	0	0	58.34	13.80	$0
Sep 2005	1	0	61.45	12.08	$61
Aug 2005	176	0	61.51	9.80	$10,826
Jul 2005	174	0	55.69	7.84	$9,690
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	175	0	39.86	6.75	$6,976
Nov 2004	0	0	45.28	6.33	$0
Oct 2004	0	0	49.70	6.52	$0
Sep 2004	0	0	43.24	5.28	$0
Aug 2004	344	0	42.37	5.55	$14,575
Jul 2004	175	0	38.28	6.08	$6,699
Jun 2004	174	0	36.10	6.43	$6,281
May 2004	0	0	37.48	6.49	$0
Apr 2004	175	0	34.47	5.86	$6,032
Mar 2004	1	0	34.36	5.53	$34
Feb 2004	0	0	32.45	5.51	$0
Jan 2004	1	0	32.03	6.30	$32
Dec 2003	0	0	30.26	6.30	$0
Nov 2003	170	0	28.80	4.60	$4,896
Oct 2003	1	0	28.17	4.76	$28
Sep 2003	0	0	26.31	4.75	$0
Aug 2003	1	0	29.76	5.13	$30
Jul 2003	185	0	29.41	5.17	$5,441
Jun 2003	185	0	28.56	5.98	$5,284
May 2003	377	0	26.59	5.97	$10,024
Apr 2003	195	0	26.67	5.41	$5,201
Mar 2003	1	0	31.14	6.10	$31
Feb 2003	2	0	33.48	7.93	$67
Jan 2003	184	0	30.31	5.58	$5,577
Dec 2002	1	0	26.91	4.85	$27
Nov 2002	2	0	24.66	4.14	$49
Oct 2002	1	0	26.46	4.23	$26
Sep 2002	369	0	27.44	3.64	$10,125
Aug 2002	376	0	25.96	3.16	$9,761
Jul 2002	0	0	24.58	3.06	$0
Jun 2002	189	0	23.73	3.34	$4,485
May 2002	0	0	24.66	3.58	$0
Apr 2002	366	0	23.65	3.51	$8,656
Mar 2002	190	0	22.00	3.10	$4,180
Feb 2002	187	0	18.22	2.38	$3,407
Jan 2002	195	0	17.17	2.38	$3,348
Dec 2001	0	0	16.93	2.36	$0
Nov 2001	197	0	18.07	2.41	$3,560
Oct 2001	1	0	19.78	2.53	$20
Sep 2001	107	0	24.26	2.25	$2,596
Aug 2001	0	0	24.87	3.05	$0
Jul 2001	189	0	23.93	3.20	$4,523
Jun 2001	1	0	24.56	3.82	$25
May 2001	0	0	25.52	4.31	$0
Apr 2001	170	0	24.68	5.34	$4,196
Mar 2001	0	0	24.54	5.38	$0
Feb 2001	171	0	27.75	5.77	$4,745
Jan 2001	221	0	27.47	8.40	$6,071
Dec 2000	2	0	26.88	9.12	$54
Nov 2000	386	0	32.21	5.66	$12,433
Oct 2000	1	0	31.23	5.15	$31
Sep 2000	187	0	31.87	5.19	$5,960
Aug 2000	539	0	29.64	4.54	$15,976
Jul 2000	371	0	28.53	4.09	$10,585
Jun 2000	357	0	29.30	4.40	$10,460
May 2000	190	0	27.26	3.68	$5,179
Apr 2000	1	2	24.51	3.12	$31
Mar 2000	1	7	28.42	2.86	$48
Feb 2000	159	4	27.62	2.73	$4,402
Jan 2000	2	5	25.27	2.48	$63
Dec 1999	199	79	24.28	2.42	$5,023
Nov 1999	2	15	23.19	2.43	$83
Oct 1999	0	53	20.98	2.80	$149
Sep 1999	1	66	21.75	2.62	$195
Aug 1999	1	90	19.26	2.88	$278
Jul 1999	368	63	17.89	2.37	$6,733
Jun 1999	0	87	15.94	2.36	$206
May 1999	179	150	15.79	2.32	$3,175
Apr 1999	0	163	15.10	2.21	$360
Mar 1999	187	173	12.47	1.84	$2,650
Feb 1999	1	165	9.98	1.82	$310
Jan 1999	181	248	10.38	1.90	$2,350
Dec 1998	0	412	9.20	1.77	$731
Nov 1998	175	387	10.89	2.19	$2,752
Oct 1998	364	426	12.42	1.97	$5,360
Sep 1998	1	401	12.59	2.08	$848
Aug 1998	1	416	11.30	1.91	$805
Jul 1998	192	354	11.74	2.24	$3,046
Jun 1998	177	226	11.24	2.24	$2,495
May 1998	163	434	12.62	2.21	$3,015
Apr 1998	194	285	13.04	2.51	$3,244
Mar 1998	184	303	12.80	2.31	$3,055
Feb 1998	179	345	13.95	2.30	$3,290
Jan 1998	182	338	14.70	2.15	$3,404
Dec 1997	177	361	16.32	2.41	$3,759
Nov 1997	181	295	18.19	3.09	$4,203
Oct 1997	172	281	19.25	3.15	$4,196
Sep 1997	176	498	17.74	2.95	$4,594
Aug 1997	182	476	17.86	2.55	$4,467
Jul 1997	0	421	17.58	2.25	$946
Jun 1997	295	300	17.24	2.26	$5,763
May 1997	174	265	18.97	2.31	$3,913
Apr 1997	175	322	17.88	2.08	$3,800
Mar 1997	183	259	18.95	1.94	$3,970
Feb 1997	189	293	20.49	2.21	$4,519
Jan 1997	171	452	23.48	3.54	$5,615
Dec 1996	194	369	23.32	—	$4,524
Nov 1996	176	422	21.97	—	$3,867
Oct 1996	96	578	23.31	—	$2,238
Sep 1996	134	475	22.22	—	$2,977
Aug 1996	99	542	20.26	—	$2,006
Jul 1996	198	502	19.55	—	$3,871
Jun 1996	0	629	18.73	—	$0
May 1996	111	557	19.43	—	$2,157
Apr 1996	78	529	21.51	—	$1,678
Mar 1996	192	533	19.38	—	$3,721
Feb 1996	192	461	16.98	—	$3,260
Jan 1996	1	543	17.07	—	$17
Dec 1995	148	801	17.19	—	$2,544
Nov 1995	302	748	16.00	—	$4,832
Oct 1995	189	703	15.43	—	$2,916
Sep 1995	1	765	16.18	—	$16
Aug 1995	333	212	15.92	—	$5,301
Jul 1995	490	3	15.24	—	$7,468
Jun 1995	88	0	16.41	—	$1,444
May 1995	192	317	17.56	—	$3,372
Apr 1995	105	348	17.73	—	$1,862
Mar 1995	356	1,477	16.44	—	$5,853
Feb 1995	355	705	16.58	—	$5,886
Jan 1995	380	518	15.92	—	$6,050
Dec 1994	552	630	15.03	—	$8,297
Nov 1994	370	409	15.90	—	$5,883
Oct 1994	187	468	15.58	—	$2,913
Sep 1994	385	30	15.29	—	$5,887
Aug 1994	194	280	16.13	—	$3,129
Jul 1994	177	95	17.56	—	$3,108
Jun 1994	171	436	17.09	—	$2,922
May 1994	2	295	15.88	—	$32
Apr 1994	114	609	14.14	—	$1,612
Mar 1994	326	560	12.46	—	$4,062
Feb 1994	345	395	12.50	—	$4,313
Jan 1994	527	496	12.66	—	$6,672
Dec 1993	356	627	12.33	—	$4,389
Nov 1993	0	963	14.49	—	$0
Oct 1993	102	594	15.85	—	$1,617
Sep 1993	179	569	15.03	—	$2,690
Aug 1993	355	631	15.66	—	$5,559
Jul 1993	175	353	15.46	—	$2,706
Jun 1993	178	773	16.79	—	$2,989
May 1993	558	696	17.68	—	$9,865
Apr 1993	907	758	18.05	—	$16,371
Mar 1993	383	1,783	18.14	—	$6,948
Feb 1993	176	110	17.90	—	$3,150
Jan 1993	0	427	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.

May 2011 — as filed, then multipliedworked

Oil                   41 bbl  × $ 98.13 =     $4,023
Casinghead gas         0 Mcf  × $  4.40 =         $0

────────────────────────────────────────────────────
Month total                                   $4,023

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. 03/O/18268 is the state's own key, not one this site invented.