WALNUT BEND FIELD UNIT

Oil · District 09 · Lease #27427

Operator: VASTAR RESOURCES, INC.

Cum Oil

6.7M BBL

Cum Gas

1.4M MCF

casinghead

Wells

370

Production

1993-01 — 2026-04

Peak Month

2008-11

Production History

Cum Oil: 6,689,595 BBL Cum Gas: 1,380,522 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

31,843 BBL/mo

Di (annual)

10.5%

b-factor

0.2

EUR

4,296,599 BBL

R-squared

0.961

type

hyperbolic

Operator History (from monthly production reports)

2021-07 — 2026-07 SYDRI OPERATING, LLC 61 mo
2020-12 — 2021-06 TEAM OPERATING, L.L.C. 7 mo
2013-01 — 2020-11 MERIT ENERGY COMPANY 95 mo
2006-05 — 2012-12 CIMAREX ENERGY CO. OF COLORADO 80 mo
1999-06 — 2006-04 GRUY PETROLEUM MANAGEMENT CO. 83 mo
1994-03 — 1999-05 VASTAR RESOURCES, INC. 63 mo
1993-01 — 1994-02 ARCO OIL & GAS CO. 14 mo

Wells (370)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1580SYDRI OPERATING, LLC35,4622022-08-30
1580ASYDRI OPERATING, LLC35,4622022-08-30
1583SYDRI OPERATING, LLC35,4622022-08-30
2033SYDRI OPERATING, LLC35,5022022-07-21
2317SYDRI OPERATING, LLC14,9782017-03-02
2340SYDRI OPERATING, LLC35,6402017-02-09
2310SYDRI OPERATING, LLC24,9372016-01-21
2226WSYDRI OPERATING, LLC15,0312016-01-14
2314SYDRI OPERATING, LLC24,9902016-01-14
2312SYDRI OPERATING, LLC14,9392015-12-15
181SYDRI OPERATING, LLC15,5192015-06-22
2225SYDRI OPERATING, LLC55,0102015-03-25
2240SYDRI OPERATING, LLC25,2472015-03-25
222SYDRI OPERATING, LLC24,9392015-03-11
223SYDRI OPERATING, LLC14,9112015-03-11
262SYDRI OPERATING, LLC15,3932015-02-19
225SYDRI OPERATING, LLC13,8802015-01-27
2333SYDRI OPERATING, LLC14,4032014-09-04
2210SYDRI OPERATING, LLC15,4062014-08-12
351SYDRI OPERATING, LLC25,4582014-04-04
2245SYDRI OPERATING, LLC25,3502014-04-01
1572LTSYDRI OPERATING, LLC15,5502013-12-30
1572UTSYDRI OPERATING, LLC15,5502013-12-30
179SYDRI OPERATING, LLC15,6202013-12-04
2012SYDRI OPERATING, LLC15,5432013-07-26
178SYDRI OPERATING, LLC25,3792013-05-30
178WSYDRI OPERATING, LLC25,3792013-05-30
1508SYDRI OPERATING, LLC25,2742012-06-27
158SYDRI OPERATING, LLC25,2742012-06-27
294SYDRI OPERATING, LLC25,2742011-06-09
155SYDRI OPERATING, LLC25,0212010-11-03
208SYDRI OPERATING, LLC34,9062010-08-31
1554SYDRI OPERATING, LLC14,6452010-08-06
2114SYDRI OPERATING, LLC35,4952010-08-06
2331SYDRI OPERATING, LLC14,5502010-06-23
2111SYDRI OPERATING, LLC35,3042009-10-12
132SYDRI OPERATING, LLC15,5832009-08-27
196SYDRI OPERATING, LLC25,0512009-08-03
124SYDRI OPERATING, LLC15,6692009-07-24
125SYDRI OPERATING, LLC36,5002009-07-23
1516SYDRI OPERATING, LLC15,6632008-10-02
2324SYDRI OPERATING, LLC15,3912008-10-01
1920 USYDRI OPERATING, LLC25,4512008-09-12
204SYDRI OPERATING, LLC15,4752008-09-05
1546SYDRI OPERATING, LLC14,6382008-09-04
131SYDRI OPERATING, LLC25,5072008-09-03
2043SYDRI OPERATING, LLC15,0502008-08-27
1526SYDRI OPERATING, LLC15,4002008-06-12
2036SYDRI OPERATING, LLC15,4002008-05-21
2039SYDRI OPERATING, LLC15,6002008-05-21
305SYDRI OPERATING, LLC15,3002008-05-21
3036SYDRI OPERATING, LLC35,4352008-01-17
3036RSYDRI OPERATING, LLC35,4352008-01-17
301SYDRI OPERATING, LLC55,5002007-12-12
301ASYDRI OPERATING, LLC55,5002007-12-12
1924SYDRI OPERATING, LLC15,8002007-10-02
2337SYDRI OPERATING, LLC15,5502007-07-09
2035SYDRI OPERATING, LLC15,5502007-07-06
221SYDRI OPERATING, LLC25,4652007-07-06
2343SYDRI OPERATING, LLC15,4002007-07-06
111SYDRI OPERATING, LLC15,7412007-05-03
2054SYDRI OPERATING, LLC25,3402007-02-12
2041SYDRI OPERATING, LLC35,6002006-08-17
2116SYDRI OPERATING, LLC25,5002006-05-09
2357SYDRI OPERATING, LLC35,0002006-05-09
2357ASYDRI OPERATING, LLC35,0002006-05-09
1575SYDRI OPERATING, LLC45,9002006-04-28
1575ASYDRI OPERATING, LLC45,9002006-04-28
1582SYDRI OPERATING, LLC35,6002006-04-28
256SYDRI OPERATING, LLC15,0002005-08-16
256WSYDRI OPERATING, LLC15,0002005-08-16
1530SYDRI OPERATING, LLC35,2132005-02-25
3010SYDRI OPERATING, LLC15,2002005-02-25
3010ASYDRI OPERATING, LLC15,2002005-02-25
51SYDRI OPERATING, LLC15,6002004-07-08
259SYDRI OPERATING, LLC35,0532004-05-04
2010SYDRI OPERATING, LLC45,4542003-06-16
2243SYDRI OPERATING, LLC35,5002003-06-16
3029SYDRI OPERATING, LLC25,5002003-06-04
3029ASYDRI OPERATING, LLC25,5002003-06-04
1527SYDRI OPERATING, LLC45,5972003-05-28
91SYDRI OPERATING, LLC15,6002003-02-13
1533SYDRI OPERATING, LLC15,5152003-01-21
101SYDRI OPERATING, LLC15,6002002-12-12
1581SYDRI OPERATING, LLC45,5002001-09-11
1913SYDRI OPERATING, LLC14,6502001-07-03
2038SYDRI OPERATING, LLC14,5212000-07-11
2329SYDRI OPERATING, LLC35,3002000-07-11
152SYDRI OPERATING, LLC35,0021997-10-16
2047 ASYDRI OPERATING, LLC35,6481997-07-21
2047ASYDRI OPERATING, LLC35,6481997-07-21
203SYDRI OPERATING, LLC15,4101997-05-20
171SYDRI OPERATING, LLC15,5251997-05-06
1567SYDRI OPERATING, LLC15,6001996-05-31
2059SYDRI OPERATING, LLC15,2511996-05-21
2326SYDRI OPERATING, LLC24,4461996-04-10
2212SYDRI OPERATING, LLC24,9161996-03-04
3035SYDRI OPERATING, LLC511,9651996-01-17
122SYDRI OPERATING, LLC15,5551995-09-11
2335SYDRI OPERATING, LLC14,4751995-07-06
161SYDRI OPERATING, LLC15,5571995-04-18
1910WSYDRI OPERATING, LLC14,7871995-04-18
3024SYDRI OPERATING, LLC14,5771994-10-04
2318SYDRI OPERATING, LLC15,0221994-09-20
238SYDRI OPERATING, LLC24,9421994-09-19
2230SYDRI OPERATING, LLC15,3801993-02-22
30SYDRI OPERATING, LLC15,3801993-02-22
307SYDRI OPERATING, LLC14,6001992-06-11
254SYDRI OPERATING, LLC14,5801992-03-24
159 LSYDRI OPERATING, LLC14,9361991-08-01
2062ASYDRI OPERATING, LLC35,6501991-03-14
1525SYDRI OPERATING, LLC15,2951988-03-23
1576SYDRI OPERATING, LLC25,7021987-06-04
1578SYDRI OPERATING, LLC45,9261986-09-29
1561SYDRI OPERATING, LLC15,0651985-06-20
1922SYDRI OPERATING, LLC25,4961985-06-20
2622SYDRI OPERATING, LLC25,2511985-06-20
2313SYDRI OPERATING, LLC14,9651985-05-29
2341SYDRI OPERATING, LLC25,4711985-05-29
2341LSYDRI OPERATING, LLC25,4711985-05-29
2341USYDRI OPERATING, LLC25,4711985-05-29
2359SYDRI OPERATING, LLC35,5901985-05-29
1512WSYDRI OPERATING, LLC14,8541985-05-14
1557SYDRI OPERATING, LLC15,5391985-05-13
267SYDRI OPERATING, LLC25,3721985-05-13
3023SYDRI OPERATING, LLC45,4171985-05-13
2247SYDRI OPERATING, LLC25,3001984-03-12
2247 LSYDRI OPERATING, LLC25,3001984-03-12
1515SYDRI OPERATING, LLC35,6091983-09-02
3030SYDRI OPERATING, LLC15,0031983-06-06
3032SYDRI OPERATING, LLC15,3161983-06-06
352SYDRI OPERATING, LLC15,2611983-06-06
1529SYDRI OPERATING, LLC25,0481982-08-06
2025SYDRI OPERATING, LLC25,5321982-05-19
211SYDRI OPERATING, LLC14,9121982-05-19
2612SYDRI OPERATING, LLC25,2001982-04-28
2616SYDRI OPERATING, LLC15,3901981-12-31
265SYDRI OPERATING, LLC14,9261981-12-31
2610SYDRI OPERATING, LLC14,9331981-12-28
2613 WSYDRI OPERATING, LLC14,9031981-12-28
2613WSYDRI OPERATING, LLC14,9031981-12-28
264SYDRI OPERATING, LLC15,1951981-12-28
269SYDRI OPERATING, LLC14,9151981-12-28
269WSYDRI OPERATING, LLC14,9151981-12-28
2063ASYDRI OPERATING, LLC25,5001981-08-26
3113SYDRI OPERATING, LLC15,4251981-08-13
3012WSYDRI OPERATING, LLC15,4741981-07-08
224SYDRI OPERATING, LLC14,9801981-05-28
2104SYDRI OPERATING, LLC14,9101981-05-13
214SYDRI OPERATING, LLC14,9101981-05-13
2246SYDRI OPERATING, LLC15,3601981-04-20
1579SYDRI OPERATING, LLC25,5001981-02-20
2627SYDRI OPERATING, LLC15,3001980-11-20
2628SYDRI OPERATING, LLC15,3001980-11-20
2629SYDRI OPERATING, LLC15,3001980-11-20
2630SYDRI OPERATING, LLC15,3001980-11-20
2016ASYDRI OPERATING, LLC25,7601980-03-14
1577SYDRI OPERATING, LLC15,7601980-02-07
2115SYDRI OPERATING, LLC25,4801980-01-10
2358SYDRI OPERATING, LLC15,5901979-12-31
2360SYDRI OPERATING, LLC15,5901979-12-31
2361SYDRI OPERATING, LLC15,5901979-12-31
2624SYDRI OPERATING, LLC15,3001979-12-03
2625SYDRI OPERATING, LLC15,3001979-12-03
2626SYDRI OPERATING, LLC15,3001979-12-03
1309SYDRI OPERATING, LLC15,0001979-09-20
138SYDRI OPERATING, LLC25,0001979-07-24
2244SYDRI OPERATING, LLC15,2001979-04-25
2623SYDRI OPERATING, LLC15,2401979-04-25
2019SYDRI OPERATING, LLC25,5621979-04-05
2044WSYDRI OPERATING, LLC15,1951979-04-05
2058SYDRI OPERATING, LLC15,2551979-04-05
2058LSYDRI OPERATING, LLC15,2551979-04-05
2058USYDRI OPERATING, LLC15,2551979-04-05
2238SYDRI OPERATING, LLC15,1931979-04-05
2510SYDRI OPERATING, LLC15,1121979-04-05
2522SYDRI OPERATING, LLC15,2481979-04-05
2011SYDRI OPERATING, LLC25,5181979-04-04
2014 ASYDRI OPERATING, LLC25,4761979-04-04
2014ASYDRI OPERATING, LLC25,4761979-04-04
218SYDRI OPERATING, LLC25,2951979-04-04
2228SYDRI OPERATING, LLC15,2751979-04-04
2512SYDRI OPERATING, LLC15,1141979-04-04
255SYDRI OPERATING, LLC25,1421979-04-04
257SYDRI OPERATING, LLC25,1531979-04-04
261SYDRI OPERATING, LLC25,1401979-04-04
2611SYDRI OPERATING, LLC15,2001979-04-04
2621SYDRI OPERATING, LLC15,1601979-04-04
1520SYDRI OPERATING, LLC15,6901979-04-03
1520 USYDRI OPERATING, LLC15,6901979-04-03
153SYDRI OPERATING, LLC15,4651979-04-03
1538SYDRI OPERATING, LLC15,5651979-04-03
1571SYDRI OPERATING, LLC25,2501979-04-03
1549SYDRI OPERATING, LLC24,8601978-05-16
1558SYDRI OPERATING, LLC25,2001978-05-16
156SYDRI OPERATING, LLC25,0231978-05-16
2211SYDRI OPERATING, LLC14,9241978-05-16
2241SYDRI OPERATING, LLC25,2511978-05-16
2319SYDRI OPERATING, LLC24,9441978-05-16
3028SYDRI OPERATING, LLC15,3401978-05-16
316SYDRI OPERATING, LLC24,9971978-05-16
342SYDRI OPERATING, LLC25,0221978-05-16
135SYDRI OPERATING, LLC15,6571978-05-03
177SYDRI OPERATING, LLC15,1041978-05-03
2801SYDRI OPERATING, LLC15,4891978-05-03
281SYDRI OPERATING, LLC15,4891978-05-03
2112SYDRI OPERATING, LLC15,3011978-05-02
2346SYDRI OPERATING, LLC15,2951978-05-02
302SYDRI OPERATING, LLC15,1881978-05-02
3025SYDRI OPERATING, LLC15,4221978-05-02
2311SYDRI OPERATING, LLC14,9711978-02-23
2617SYDRI OPERATING, LLC15,3051978-02-08
1513SYDRI OPERATING, LLC14,9541977-12-27
235SYDRI OPERATING, LLC14,9871977-12-27
2354SYDRI OPERATING, LLC15,2501977-12-27
2304SYDRI OPERATING, LLC14,9631977-12-19
112 L42-097-01026SYDRI OPERATING, LLC------
123W42-097-01024SYDRI OPERATING, LLC------
136 U42-097-30430SYDRI OPERATING, LLC------
13742-097-30480SYDRI OPERATING, LLC------
1510W42-097-00960SYDRI OPERATING, LLC------
151142-097-02632SYDRI OPERATING, LLC------
151W42-097-02631SYDRI OPERATING, LLC------
153642-097-00974SYDRI OPERATING, LLC------
1539 U42-097-00976SYDRI OPERATING, LLC------
15442-097-02636SYDRI OPERATING, LLC------
154042-097-02963SYDRI OPERATING, LLC------
154142-097-02634SYDRI OPERATING, LLC------
154242-097-02637SYDRI OPERATING, LLC------
154342-097-02638SYDRI OPERATING, LLC------
154442-097-02639SYDRI OPERATING, LLC------
154542-097-02675SYDRI OPERATING, LLC------
154842-097-00977SYDRI OPERATING, LLC------
1550L42-097-02677SYDRI OPERATING, LLC------
155142-097-83504SYDRI OPERATING, LLC------
155242-097-00979SYDRI OPERATING, LLC------
155342-097-02714SYDRI OPERATING, LLC------
155542-097-00980SYDRI OPERATING, LLC------
155642-097-02678SYDRI OPERATING, LLC------
156042-097-00983SYDRI OPERATING, LLC------
156242-097-00985SYDRI OPERATING, LLC------
156642-097-30337SYDRI OPERATING, LLC------
156942-097-30409SYDRI OPERATING, LLC------
15742-097-02777SYDRI OPERATING, LLC------
157042-097-30412SYDRI OPERATING, LLC------
157342-097-30510SYDRI OPERATING, LLC------
16342-097-07835SYDRI OPERATING, LLC------
173W42-097-83269SYDRI OPERATING, LLC------
174W42-097-01114SYDRI OPERATING, LLC------
17542-097-01115SYDRI OPERATING, LLC------
180442-097-00998SYDRI OPERATING, LLC------
184 L42-097-00998SYDRI OPERATING, LLC------
184W42-097-00998SYDRI OPERATING, LLC------
19142-097-02716SYDRI OPERATING, LLC------
1912W42-097-83389SYDRI OPERATING, LLC------
1914W42-097-02681SYDRI OPERATING, LLC------
192142-097-01057SYDRI OPERATING, LLC------
192W42-097-83278SYDRI OPERATING, LLC------
193W42-097-83279SYDRI OPERATING, LLC------
194W42-097-83280SYDRI OPERATING, LLC------
19542-097-01050SYDRI OPERATING, LLC------
197W42-097-83283SYDRI OPERATING, LLC------
19942-097-02727SYDRI OPERATING, LLC------
20142-097-07831SYDRI OPERATING, LLC------
201342-097-01019SYDRI OPERATING, LLC------
202042-097-01005SYDRI OPERATING, LLC------
2021W42-097-01006SYDRI OPERATING, LLC------
202342-097-01007SYDRI OPERATING, LLC------
203242-097-83520SYDRI OPERATING, LLC------
203742-097-01009SYDRI OPERATING, LLC------
204042-097-02615SYDRI OPERATING, LLC------
204242-097-83614SYDRI OPERATING, LLC------
2045A42-097-02718SYDRI OPERATING, LLC------
2046U42-097-83618SYDRI OPERATING, LLC------
204842-097-83405SYDRI OPERATING, LLC------
20542-097-02683SYDRI OPERATING, LLC------
205542-097-30350SYDRI OPERATING, LLC------
205742-097-30435SYDRI OPERATING, LLC------
20642-097-83287SYDRI OPERATING, LLC------
206042-097-30492SYDRI OPERATING, LLC------
20742-097-02790SYDRI OPERATING, LLC------
211342-097-30499SYDRI OPERATING, LLC------
21242-097-02730SYDRI OPERATING, LLC------
213 L42-097-02731SYDRI OPERATING, LLC------
21742-097-02689SYDRI OPERATING, LLC------
222042-097-02692SYDRI OPERATING, LLC------
222242-097-02693SYDRI OPERATING, LLC------
222342-097-02694SYDRI OPERATING, LLC------
222442-097-02695SYDRI OPERATING, LLC------
222742-097-02696SYDRI OPERATING, LLC------
224242-097-30490SYDRI OPERATING, LLC------
22642-097-83559SYDRI OPERATING, LLC------
22942-097-02698SYDRI OPERATING, LLC------
229L42-097-02698SYDRI OPERATING, LLC------
229 U42-097-02698SYDRI OPERATING, LLC------
231542-097-83633SYDRI OPERATING, LLC------
231642-097-02736SYDRI OPERATING, LLC------
2316L42-097-02736SYDRI OPERATING, LLC------
2316U42-097-02736SYDRI OPERATING, LLC------
231W42-097-01035SYDRI OPERATING, LLC------
23242-097-01036SYDRI OPERATING, LLC------
232742-097-08489SYDRI OPERATING, LLC------
232842-097-83640SYDRI OPERATING, LLC------
233242-097-02741SYDRI OPERATING, LLC------
233442-097-02702SYDRI OPERATING, LLC------
233642-097-02704SYDRI OPERATING, LLC------
233842-097-84918SYDRI OPERATING, LLC------
233942-097-03722SYDRI OPERATING, LLC------
233W42-097-83304SYDRI OPERATING, LLC------
234242-097-01039SYDRI OPERATING, LLC------
235042-097-02022SYDRI OPERATING, LLC------
2350 L42-097-02022SYDRI OPERATING, LLC------
2350 U42-097-02022SYDRI OPERATING, LLC------
235342-097-00754SYDRI OPERATING, LLC------
235642-097-30347SYDRI OPERATING, LLC------
23642-097-02792SYDRI OPERATING, LLC------
23742-097-83307SYDRI OPERATING, LLC------
23942-097-02775SYDRI OPERATING, LLC------
250842-097-01075SYDRI OPERATING, LLC------
251142-097-83431SYDRI OPERATING, LLC------
251342-097-00358SYDRI OPERATING, LLC------
251442-097-83433SYDRI OPERATING, LLC------
2515W42-097-83434SYDRI OPERATING, LLC------
2516W42-097-83435SYDRI OPERATING, LLC------
2517W42-097-01054SYDRI OPERATING, LLC------
251942-097-83437SYDRI OPERATING, LLC------
251 L42-097-02708SYDRI OPERATING, LLC------
25242-097-02746SYDRI OPERATING, LLC------
252042-097-30434SYDRI OPERATING, LLC------
252142-097-30433SYDRI OPERATING, LLC------
25342-097-02747SYDRI OPERATING, LLC------
25842-097-01075SYDRI OPERATING, LLC------
261542-097-00169SYDRI OPERATING, LLC------
26342-097-02598SYDRI OPERATING, LLC------
26642-097-83325SYDRI OPERATING, LLC------
26842-097-00796SYDRI OPERATING, LLC------
29142-097-01047SYDRI OPERATING, LLC------
293W42-097-01048SYDRI OPERATING, LLC------
301142-097-00989SYDRI OPERATING, LLC------
3014W42-097-10494SYDRI OPERATING, LLC------
301642-097-03000SYDRI OPERATING, LLC------
3016W42-097-03000SYDRI OPERATING, LLC------
3018W42-097-05702SYDRI OPERATING, LLC------
301942-097-05700SYDRI OPERATING, LLC------
302042-097-00993SYDRI OPERATING, LLC------
3022U42-097-83668SYDRI OPERATING, LLC------
302742-097-02710SYDRI OPERATING, LLC------
3027W42-097-02710SYDRI OPERATING, LLC------
30342-097-02220SYDRI OPERATING, LLC------
303142-097-02711SYDRI OPERATING, LLC------
30442-097-02757SYDRI OPERATING, LLC------
30842-097-00987SYDRI OPERATING, LLC------
30942-097-02759SYDRI OPERATING, LLC------
31142-097-07842SYDRI OPERATING, LLC------
3110W42-097-83472SYDRI OPERATING, LLC------
311142-097-83474SYDRI OPERATING, LLC------
311242-097-07834SYDRI OPERATING, LLC------
31342-097-03767SYDRI OPERATING, LLC------
31442-097-83573SYDRI OPERATING, LLC------
31542-097-03192SYDRI OPERATING, LLC------
31742-097-02958SYDRI OPERATING, LLC------
31842-097-02623SYDRI OPERATING, LLC------
31942-097-83350SYDRI OPERATING, LLC------
341W42-097-01139SYDRI OPERATING, LLC------
34442-097-30152SYDRI OPERATING, LLC------
39242-097-83362SYDRI OPERATING, LLC------
394W42-097-84951SYDRI OPERATING, LLC------
39642-097-30301SYDRI OPERATING, LLC------
40342-097-83580SYDRI OPERATING, LLC------
40642-097-02148SYDRI OPERATING, LLC------