US Regulatory Compliance Projects

U.S. Regulatory Compliance Projects

Ryder Scott is experienced in reserves evaluations spanning the world. This includes reporting guidelines and regulations for a variety of organizations and regulatory bodies. Regardless of where in the world a company’s oil and gas assets reside or where the company conducts its business, if the company offers securities for sale to the public in the United States market (exchange), they must conform to U.S. Security and Exchange Commission (SEC) standards. The SEC’s mission is primarily to protect investors; maintain fair, orderly and efficient markets; and facilitate capital formation. To this end, the SEC requires companies, to disclose meaningful financials such that all investors will have access to certain basic facts about an investment prior to buying it, and so long as they hold it. Also, search SEC documents at SEC Seeker.  The public is informed about a company’s oil and gas reserves through the filing of certain SEC Forms which are made publicly available, the most common of which include the following:

  • Form 10-K
    • An annual report that provides a comprehensive overview of a company’s business and financial condition. Companies domiciled in the US use this form.
  • Form 20-F
    • An annual report which serves a purpose similar to that of Form 10-K. Foreign, private issuers use this form.
  • Form 40-F
    • An annual report which serves a purpose similar to that of Form 10-K. Companies domiciled in Canada use this form.
  • Form S-1, S-3 and S-8
    • Registration form for new securities

Ryder Scott enjoys a significant and long-standing tradition of conducting reserves evaluations which conform to SEC regulations. This experience is demonstrated by the large number of references to Ryder Scott in these publicly available documents. All SEC filings are available on the SEC’s website(https://www.sec.gov/) and can be found in their Electronic Data-Gathering, and Retrieval System EDGAR. To see specifically Ryder Scott’s extensive experience, you can search for “Ryder Scott” on EDGAR using the “full text search” feature here (note: only last four years are available when using the full text search). To see our experience beyond the last four years, see the table below which lists the publicly available 10-K and 20-F annual reports that reference Ryder Scott from 2005 to present.

 

Ref. No.CompanyFiling DateForm
1Adams Resources3/12/201810-K
2Alta Mesa3/29/201810-K
3Apache2/23/201810-K
4Apache Offshore Investment2/23/201810-K
5Baytex Energy3/9/201840-F
6Bellatrix Exploration3/14/201840-F
7Carrizo Oil2/28/201810-K
8Chaparral Energy3/29/201810-K
9Chesapeake Energy2/22/201810-K
10CNOOC4/19/201820-F
11CNOOC4/19/201820-F/A
12Continental Resources2/21/201810-K
13Diamondback Energy2/15/201810-K
14ECAMarcellus3/20/201810-K
15Eco PetrolSA4/26/201820-F/A
16Eco PetrolSA4/19/201820-F
17Energen2/28/201810-K
18Eni SpA4/6/201820-F
19EPEnergy3/2/201810-K
20EQT2/15/201810-K
21Exco Resources4/30/201810-K/A
22Exco Resources3/15/201810-K
23Goodrich Petroleum3/2/201810-K
24Kosmos Energy2/26/201810-K
25Laredo Petroleum2/15/201810-K
26Newfield Exploration2/20/201810-K
27Northern Oil Gas2/23/201810-K
28Occidental Petroleum2/23/201810-K
29PDC5/1/201810-K/A
30PDC2/27/201810-K
31Pemex4/30/201820-F
32Petro ChinaCNPC4/27/201820-F
33Petro Quest Energy4/27/201810-K/A
34Petro Quest Energy3/29/201810-K/A
35Petro Quest Energy3/8/201810-K
36Prime Energy4/17/201810-K
37QEPResources2/28/201810-K
38REXEnergy4/13/201810-K
39Sanchez Energy3/1/201810-K
40Sanchez Production3/12/201810-K
41Sand Ridge Energy4/30/201810-K/A
42Sand Ridge Energy2/22/201810-K
43SMEnergy StMary Land2/21/201810-K
44Unit2/27/201810-K
45Viper Energy2/16/201810-K/A
46Viper Energy2/7/201810-K
47Adams Resources3/31/201710-K
48Alta Mesa3/30/201710-K
49Apache2/24/201710-K
50Apache Offshore Investment2/24/201710-K
51Baytex Energy3/8/201740-F
52Carrizo Oil2/27/201710-K
53Chaparral Energy3/31/201710-K
54Chesapeake Energy3/3/201710-K
55Clayton Williams Energy3/2/201710-K
56CNOOC4/21/201720-F
57Continental Resources2/22/201710-K
58Diamondback Energy2/15/201710-K
59ECAMarcellus3/10/201710-K
60Eco PetrolSA5/31/201720-F
61Energen2/28/201710-K
62Eni SpA3/22/201720-F
63EPEnergy3/3/201710-K
64EQT2/9/201710-K
65Exco Resources3/16/201710-K
66Goodrich Petroleum3/3/201710-K
67Gulfport Energy2/15/201710-K
68Halcon Resources3/1/201710-K
69Kosmos Energy2/27/201710-K
70Laredo Petroleum2/16/201710-K
71Marathon Oil2/24/201710-K
72Memorial Production Partners3/10/201710-K
73Newfield Exploration2/21/201710-K
74Northern Oil Gas3/2/201710-K
75Occidental Petroleum2/23/201710-K
76PDC2/28/201710-K
77Pemex5/1/201720-F
78Petro ChinaCNPC4/27/201720-F
79Petro Quest Energy3/9/201710-K
80Prime Energy4/18/201710-K
81QEPResources2/22/201710-K
82Sanchez Energy2/27/201710-K
83Sanchez Production3/28/201710-K
84Sand Ridge Energy3/3/201710-K
85SMEnergy StMary Land2/23/201710-K
86Synergy Resources2/23/201710-K
87Unit2/28/201710-K
88Victory Energy3/31/201710-K
89Viper Energy2/15/201710-K
90Adams Resources3/11/201610-K
91Alta Mesa3/29/201610-K
92Apache2/26/201610-K
93Apache Offshore Investment2/26/201610-K
94Baytex Energy3/17/201640-F
95Carrizo Oil2/22/201610-K
96Chaparral Energy3/30/201610-K
97Chesapeake Energy2/25/201610-K
98Chesapeake Granite Wash Trust3/10/201610-K
99Clayton Williams Energy3/24/201610-K
100CNOOC4/21/201620-F
101Continental Resources2/24/201610-K
102Diamondback Energy2/19/201610-K
103ECAMarcellus3/11/201610-K
104Eco PetrolSA4/29/201620-F
105Energen2/16/201610-K
106Eni SpA4/12/201620-F
107EPEnergy2/22/201610-K
108EQT2/11/201610-K
109Exco Resources3/2/201610-K
110Goodrich Petroleum4/29/201610-K/A
111Goodrich Petroleum3/30/201610-K
112Gulfport Energy2/19/201610-K
113Halcon Resources4/25/201610-K/A
114Harvest Natural Resources3/29/201610-K
115Kosmos Energy2/22/201610-K
116Laredo Petroleum2/17/201610-K
117Marathon Oil2/25/201610-K
118Memorial Production Partners2/24/201610-K
119Memorial Resource2/24/201610-K
120Newfield Exploration2/24/201610-K
121Northern Oil Gas3/3/201610-K
122Occidental Petroleum2/26/201610-K
123Pemex5/16/201620-F
124Petro ChinaCNPC4/28/201620-F
125Petro Quest Energy3/4/201610-K
126Petroleum Development2/22/201610-K
127Prime Energy4/8/201610-K
128QEPResources2/24/201610-K
129Sabine Oil3/24/201610-K
130Samson Oil Gas9/29/201610-K
131Sanchez Energy2/29/201610-K
132Sanchez Production3/30/201610-K
133Sand Ridge Energy4/29/201610-K/A
134Sand Ridge Energy3/30/201610-K
135SMEnergy StMary Land2/24/201610-K
136Superior Energy Services2/25/201610-K
137Unit2/25/201610-K
138Victory Energy4/8/201610-K
139Viper Energy2/19/201610-K
140Adams Resources3/13/201510-K
141Alta Mesa3/26/201510-K
142Apache2/27/201510-K
143Apache Offshore Investment2/27/201510-K
144Arete4/15/201510-K
145Baytex Energy3/9/201540-F
146Carrizo Oil2/25/201510-K
147Chaparral Energy3/31/201510-K
148Chesapeake Energy2/27/201510-K
149Chesapeake Granite Wash Trust3/12/201510-K
150Clayton Williams Energy2/27/201510-K
151CNOOC4/22/201520-F
152Continental Resources2/24/201510-K
153Diamondback Energy2/19/201510-K
154ECAMarcellus3/16/201510-K
155Eco PetrolSA4/28/201520-F
156Energen3/2/201510-K
157Eni SpA4/2/201520-F
158EQT2/12/201510-K
159Exco Resources2/25/201510-K
160Goodrich Petroleum4/30/201510-K/A
161Goodrich Petroleum3/2/201510-K
162Gulf Coast Ultra Deep3/16/201510-K
163Gulfport Energy2/27/201510-K
164Halcon Resources3/5/201510-K/A
165Harvest Natural Resources6/26/201510-K/A
166Harvest Natural Resources3/27/201510-K
167Kosmos Energy2/23/201510-K
168Laredo Petroleum2/26/201510-K
169LLREnergy3/4/201510-K
170Marathon Oil3/2/201510-K
171MDUResources Fidelity2/20/201510-K
172Memorial Production Partners2/26/201510-K
173Memorial Resource3/18/201510-K
174Northern Oil Gas2/27/201510-K
175Occidental Petroleum2/23/201510-K
176PDC2/19/201510-K
177Pemex4/30/201520-F
178Petro ChinaCNPC4/29/201520-F
179Petro Quest Energy3/6/201510-K
180Petroleum Development2/19/201510-K
181Pioneer Natural Resources2/19/201510-K
182Prime Energy3/18/201510-K
183QEPResources2/25/201510-K/A
184QEPResources2/24/201510-K
185Samson Oil Gas9/15/201510-K
186Sanchez Energy3/2/201510-K
187SMEnergy StMary Land2/25/201510-K
188Superior Energy Services2/26/201510-K
189Synergy Resources10/16/201510-K
190Synergy Resources6/23/201510-K/A
191Unit2/24/201510-K
192Viper Energy2/20/201510-K
193Zaza Energy4/13/201510-K/A
194Zaza Energy3/31/201510-K
195Adams Resources3/13/201410-K
196Alabama Gas3/3/201410-K
197Alta Mesa3/28/201410-K
198Apache2/28/201410-K
199Apache Offshore Investment2/28/201410-K
200Arete4/15/201410-K
201Carrizo Oil3/3/201410-K
202Chaparral Energy3/31/201410-K
203Chesapeake Energy2/27/201410-K
204Chesapeake Granite Wash Trust3/14/201410-K
205Clayton Williams Energy3/11/201410-K
206CNOOC4/17/201420-F
207Continental Resources2/27/201410-K
208Diamondback Energy2/19/201410-K
209Earthstone Energy Basic Earth6/10/201410-K
210ECAMarcellus3/14/201410-K
211Eco PetrolSA4/25/201420-F
212Energen3/3/201410-K
213Eni SpA4/10/201420-F
214EPEnergy2/27/201410-K
215EPEnergy2/20/201410-K
216EQT2/20/201410-K
217Exco Resources2/26/201410-K
218Geo Met3/31/201410-K
219Goodrich Petroleum2/21/201410-K
220Gulf Coast Ultra Deep3/31/201410-K
221Gulfport Energy2/28/201410-K
222Harvest Natural Resources3/17/201410-K
223Kinder Morgan2/24/201410-K
224Kinder Morgan Energy2/18/201410-K
225Laredo Petroleum2/27/201410-K
226Marathon Oil2/28/201410-K
227MDUResources Fidelity2/21/201410-K
228Memorial Production Partners3/7/201410-K
229Miller Energy Resources7/15/201410-K/A
230Miller Energy Resources7/14/201410-K
231Nabors Industries4/1/201410-K/A
232Northern Oil Gas3/3/201410-K
233Occidental Petroleum3/3/201410-K
234PDC2/21/201410-K
235PDC2002B4/7/201410-K
236PDC2002C4/7/201410-K
237Pedevco7/1/201410-K/A
238Pedevco3/31/201410-K
239Pemex5/15/201420-F
240Petro Quest Energy3/5/201410-K
241Petroleum Development2/21/201410-K
242Pioneer Natural Resources2/27/201410-K
243Prime Energy3/26/201410-K
244QEPResources2/25/201410-K
245QREnergy3/3/201410-K
246RSPPermian3/31/201410-K
247Samson Oil Gas9/15/201410-K
248Sanchez Energy3/12/201410-K
249SMEnergy StMary Land5/9/201410-K/A
250SMEnergy StMary Land2/19/201410-K
251Synergy Resources10/30/201410-K
252Synergy Resources6/20/201410-K/A
253Triangle Petroleum4/17/201410-K
254Unit2/25/201410-K
255USEnergy3/12/201410-K
256Victory Energy4/21/201410-K/A
257Victory Energy4/15/201410-K
258Zaza Energy3/31/201410-K
259Adams Resources3/15/201310-K
260Alabama Gas2/28/201310-K
261Antero Resources3/15/201310-K
262Apache3/1/201310-K
263Apache Offshore Investment3/1/201310-K
264Arete4/19/201310-K
265Carrizo Oil2/28/201310-K
266Chaparral Energy4/1/201310-K
267Chesapeake Energy4/30/201310-K/A
268Chesapeake Energy3/1/201310-K
269Chesapeake Granite Wash Trust3/15/201310-K
270Clayton Williams Energy3/5/201310-K
271CNOOC4/24/201320-F
272Continental Resources2/28/201310-K
273Delta Oil Gas4/3/201310-K/A
274Delta Oil Gas4/1/201310-K
275Diamondback Energy4/10/201310-K/A
276Diamondback Energy3/1/201310-K
277Eastern American Natural Gas Trust3/15/201310-K
278ECAMarcellus3/15/201310-K
279Eco PetrolSA4/29/201320-F
280Energen2/28/201310-K
281Eni SpA4/9/201320-F
282EQT2/21/201310-K
283Geo Met3/28/201310-K
284Gulfport Energy3/1/201310-K
285Harvest Natural Resources5/2/201310-K
286Laredo Petroleum3/12/201310-K
287Marathon Oil2/22/201310-K
288Mc MoRan Exploration4/26/201310-K/A
289Mc MoRan Exploration2/22/201310-K
290MDUResources Fidelity2/28/201310-K
291Memorial Production Partners3/5/201310-K
292Murphy Oil2/28/201310-K
293Nexen2/25/201340-F
294Northern Oil Gas3/1/201310-K
295Occidental Petroleum2/26/201310-K
296PDC2/27/201310-K
297PDC2002B3/15/201310-K
298PDC2002C3/15/201310-K
299Pedevco4/25/201310-K/A
300Pedevco4/19/201310-K/A
301Pedevco3/25/201310-K
302Pemex4/30/201320-F
303Petro Quest Energy3/11/201310-K
304Petroleum Development2/27/201310-K
305Pioneer Natural Resources2/13/201310-K
306Plains Exploration2/25/201310-K/A
307Plains Exploration2/21/201310-K
308Prime Energy3/27/201310-K
309QEPResources2/22/201310-K
310QREnergy3/6/201310-K
311Ridgewood EnergyA1Fund2/26/201310-K
312Ridgewood EnergyLFund3/11/201310-K
313Ridgewood EnergyOFund3/5/201310-K
314Ridgewood EnergyPFund3/11/201310-K
315Ridgewood EnergyQFund3/14/201310-K
316Ridgewood EnergySFund3/5/201310-K
317Ridgewood EnergyTFund2/26/201310-K
318Ridgewood EnergyUFund3/11/201310-K
319Ridgewood EnergyVFund3/14/201310-K
320Ridgewood EnergyWFund2/26/201310-K
321Ridgewood EnergyXFund3/5/201310-K
322Ridgewood EnergyYFund3/14/201310-K
323Samson Oil Gas9/18/201310-K/A
324Samson Oil Gas9/16/201310-K
325Sanchez Energy3/18/201310-K
326SMEnergy StMary Land2/21/201310-K
327Synergy Resources11/14/201310-K
328Triangle Petroleum5/31/201310-K/A
329Triangle Petroleum5/1/201310-K
330Unit2/26/201310-K
331USEnergy3/18/201310-K
332Zaza Energy4/2/201310-K
333Adams Resources3/23/201210-K
334Alabama Gas2/27/201210-K
335Antero Resources4/11/201210-K/A
336Antero Resources4/11/201210-K/A
337Antero Resources3/20/201210-K
338Apache2/29/201210-K
339Apache Offshore Investment2/29/201210-K
340Arete5/1/201210-K/A
341Arete4/16/201210-K
342ATPOil Gas3/15/201210-K
343Carrizo Oil2/29/201210-K
344Chaparral Energy3/29/201210-K
345Chesapeake Energy4/30/201210-K/A
346Chesapeake Energy4/3/201210-K/A
347Chesapeake Energy2/29/201210-K
348Chesapeake Granite Wash Trust3/30/201210-K
349Clayton Williams Energy3/5/201210-K
350CNOOC4/20/201220-F
351Continental Resources2/24/201210-K
352Earthstone Energy Basic Earth6/5/201210-K
353Earthstone Energy Basic Earth6/5/201210-K/A
354Eastern American Natural Gas Trust3/9/201210-K
355ECAMarcellus3/12/201210-K
356Eco PetrolSA4/30/201220-F
357El Paso4/30/201210-K/A
358El Paso2/27/201210-K
359Energen2/27/201210-K
360Energy PartnersEPL3/8/201210-K
361Eni SpA4/5/201220-F
362EQT2/16/201210-K
363Geo Met3/30/201210-K
364Gulfport Energy2/27/201210-K
365Harvest Natural Resources3/15/201210-K
366La Cortez Energy4/18/201210-K/A
367La Cortez Energy4/16/201210-K
368Laredo Petroleum3/21/201210-K
369Marathon Oil2/29/201210-K
370Marathon Oil1/20/201210-K/A
371Mc MoRan Exploration2/29/201210-K
372MDUResources Fidelity2/24/201210-K
373Murphy Oil3/16/201210-K/A
374Murphy Oil2/28/201210-K
375Nexen2/23/201240-F
376Northern Oil Gas2/29/201210-K
377Occidental Petroleum2/23/201210-K
378PDC3/1/201210-K
379PDC2002B3/20/201210-K
380PDC2002C3/20/201210-K
381Pemex4/30/201220-F
382Petro Quest Energy3/5/201210-K
383Petrohawk Energy2/28/201210-K
384Petroleum Development3/1/201210-K
385Plains Exploration2/24/201210-K
386Prime Energy3/29/201210-K
387QEPResources2/24/201210-K
388QREnergy3/15/201210-K
389Ridgewood EnergyA1Fund2/16/201210-K
390Ridgewood EnergyKFund3/1/201210-K
391Ridgewood EnergyLFund3/30/201210-K
392Ridgewood EnergyMFund3/30/201210-K
393Ridgewood EnergyOFund3/30/201210-K
394Ridgewood EnergyPFund3/30/201210-K
395Ridgewood EnergyQFund3/1/201210-K
396Ridgewood EnergySFund3/30/201210-K
397Ridgewood EnergyTFund2/16/201210-K
398Ridgewood EnergyUFund3/30/201210-K
399Ridgewood EnergyVFund3/30/201210-K
400Ridgewood EnergyWFund3/30/201210-K
401Ridgewood EnergyXFund3/1/201210-K
402Ridgewood EnergyYFund2/16/201210-K
403Samson Oil Gas9/13/201210-K
404Sanchez Energy3/30/201210-K
405SMEnergy StMary Land2/23/201210-K
406Synergy Resources12/13/201210-K/A
407Synergy Resources11/14/201210-K
408Tengasco3/29/201210-K
409Triangle Petroleum5/18/201210-K/A
410Triangle Petroleum4/16/201210-K
411Unit2/23/201210-K
412USEnergy3/14/201210-K
413YPFSociedad Anonima5/16/201220-F
414Adams Resources3/21/201110-K
415Alabama Gas2/25/201110-K
416Antero Resources3/30/201110-K
417Apache4/7/201110-K/A
418Apache2/28/201110-K
419Apache Offshore Investment2/28/201110-K
420ATPOil Gas3/15/201110-K
421Canadian Natural Resources3/25/201140-F
422Carrizo Oil3/31/201110-K
423Chaparral Energy3/29/201110-K
424Chesapeake Energy3/1/201110-K
425Clayton Williams Energy2/28/201110-K
426CNOOC4/29/201120-F
427Continental Resources2/25/201110-K
428Devon Energy2/23/201110-K
429Earthstone Energy Basic Earth6/16/201110-K
430Eastern American Natural Gas Trust3/11/201110-K
431ECAMarcellus3/1/201110-K
432Eco PetrolSA8/8/201120-F/A
433Eco PetrolSA7/15/201120-F
434El Paso2/28/201110-K
435Energen2/25/201110-K
436Energy PartnersEPL3/3/201110-K
437Eni SpA4/7/201120-F/A
438Eni SpA4/7/201120-F
439EQT2/23/201110-K
440Geoglobal Resources3/31/201110-K
441Harvest Natural Resources3/16/201110-K/A
442Harvest Natural Resources3/16/201110-K
443La Cortez Energy4/1/201110-K
444Loews Highmount Exploration2/23/201110-K
445Mainland Resources6/1/201110-K
446Marathon Oil2/25/201110-K
447Mc MoRan Exploration2/28/201110-K
448MDUResources Fidelity2/23/201110-K
449Northern Oil Gas9/16/201110-K/A
450Northern Oil Gas3/4/201110-K
451Occidental Petroleum2/24/201110-K
452PDC2/24/201110-K
453PDC2002B6/30/201110-K
454PDC2002C6/30/201110-K
455PDC2002D3/30/201110-K
456PDC2003A3/30/201110-K
457PDC2003B3/30/201110-K
458PDC2003C3/30/201110-K
459PDC2003D3/30/201110-K
460PDC2005A3/30/201110-K
461PDC2005B3/30/201110-K
462Pemex6/30/201120-F
463Petro Quest Energy2/28/201110-K
464Petrohawk Energy12/5/201110-K/A
465Petrohawk Energy2/21/201110-K
466Petroleum Development2/24/201110-K
467Plains Exploration2/24/201110-K
468Prime Energy4/7/201110-K
469Prime Energy3/14/201110-K/A
470Prime Energy3/3/201110-K/A
471QEPResources2/25/201110-K
472QREnergy5/4/201110-K
473Rancher Energy7/14/201110-K
474Repsol2/4/201120-F/A
475Ridgewood EnergyA1Fund2/18/201110-K
476Ridgewood EnergyKFund3/15/201110-K
477Ridgewood EnergyLFund3/10/201110-K
478Ridgewood EnergyMFund3/22/201110-K
479Ridgewood EnergyOFund3/15/201110-K
480Ridgewood EnergyPFund3/22/201110-K
481Ridgewood EnergyQFund3/4/201110-K
482Ridgewood EnergySFund3/4/201110-K
483Ridgewood EnergyTFund2/18/201110-K
484Ridgewood EnergyUFund3/10/201110-K
485Ridgewood EnergyVFund3/15/201110-K
486Ridgewood EnergyWFund3/22/201110-K
487Ridgewood EnergyXFund3/4/201110-K
488Ridgewood EnergyYFund2/18/201110-K
489Rockies Region3/30/201110-K
490Samson Oil Gas9/13/201110-K
491SMEnergy StMary Land2/25/201110-K
492Southwest Oil Gas FundIXA3/31/201110-K
493Southwest Oil Gas FundVIIA3/31/201110-K
494Southwest Oil Gas FundVIIIA3/31/201110-K
495Southwest Oil Gas FundXA3/31/201110-K
496Southwest Oil Gas FundXB3/31/201110-K
497Southwest Royalties FundIXB3/31/201110-K
498Southwest Royalties FundV3/31/201110-K
499Southwest Royalties FundVI3/31/201110-K
500Southwest Royalties FundVIIB3/31/201110-K
501Southwest Royalties FundVIIIB3/31/201110-K
502Southwest Royalties FundXA3/31/201110-K
503Southwest Royalties FundXB3/31/201110-K
504Southwest Royalties FundXC3/31/201110-K
505Synergy Resources11/14/201110-K
506Synergy Resources6/3/201110-K/A
507Tengasco3/31/201110-K
508Tetra Technologies3/1/201110-K
509Unit2/24/201110-K
510USEnergy3/11/201110-K
511Walter Energy2/28/201110-K
512Adams Resources3/23/201010-K
513Alabama Gas2/25/201010-K
514Apache9/28/201010-K/A
515Apache2/26/201010-K
516Apache Offshore Investment2/26/201010-K
517Apco Oil Gas3/12/201010-K
518ATPOil Gas12/10/201010-K/A
519ATPOil Gas3/16/201010-K
520Canadian Natural Resources4/1/201040-F
521Carrizo Oil3/16/201010-K
522Chaparral Energy4/14/201010-K
523Chesapeake Energy8/3/201010-K/A
524Chesapeake Energy3/1/201010-K
525Clayton Williams Energy12/20/201010-K/A
526Clayton Williams Energy3/12/201010-K
527CNOOC4/23/201020-F
528Continental Resources8/20/201010-K/A
529Continental Resources2/26/201010-K
530Devon Energy8/18/201010-K/A
531Devon Energy2/25/201010-K
532Earthstone Energy Basic Earth6/18/201010-K
533Eastern American Natural Gas Trust3/15/201010-K
534Eco PetrolSA7/15/201020-F
535El Paso3/1/201010-K
536Energen2/25/201010-K
537Energy PartnersEPL3/11/201010-K
538Eni SpA4/26/201020-F
539EQT2/18/201010-K
540Harvest Natural Resources3/16/201010-K
541Hess Bakken American Oil4/30/201010-K/A
542Hess Bakken American Oil3/29/201010-K/A
543Hess Bakken American Oil3/15/201010-K
544La Cortez Energy4/20/201010-K/A
545La Cortez Energy4/16/201010-K
546Loews Highmount Exploration2/24/201010-K
547Mainland Resources11/10/201010-K/A
548Mainland Resources11/10/201010-K/A
549Mainland Resources6/1/201010-K
550Mainland Resources3/16/201010-K/A
551Marathon Oil9/17/201010-K/A
552Marathon Oil2/26/201010-K
553Mariner Energy3/1/201010-K
554Mc Moran Exploration3/12/201010-K
555MDUResources Fidelity2/17/201010-K
556Nexen12/15/201010-K/A
557Nexen2/25/201010-K
558Northern Oil Gas11/5/201010-K/A
559Northern Oil Gas3/8/201010-K
560Occidental Petroleum2/25/201010-K
561PDC8/31/201010-K/A
562PDC3/4/201010-K
563PDC2002D12/22/201010-K
564PDC2003A10/12/201010-K
565PDC2003B8/27/201010-K/A
566PDC2003B8/3/201010-K
567PDC2003C8/27/201010-K/A
568PDC2003C8/3/201010-K
569PDC2003D10/12/201010-K
570PDC2005A8/27/201010-K/A
571PDC2005A3/31/201010-K
572PDC2005B8/27/201010-K/A
573PDC2005B3/31/201010-K
574Pemex6/29/201020-F
575Petro Quest Energy2/26/201010-K
576Petrohawk Energy2/23/201010-K
577Petroleum Development8/31/201010-K/A
578Petroleum Development3/4/201010-K
579Plains Exploration9/1/201010-K/A
580Plains Exploration2/25/201010-K
581Prime Energy4/15/201010-K
582QEPResources3/8/201010-K
583Questar3/1/201010-K
584Rancher Energy7/14/201010-K
585Repsol6/29/201020-F
586Ridgewood EnergyKFund8/23/201010-K/A
587Ridgewood EnergyKFund3/23/201010-K
588Ridgewood EnergyLFund8/23/201010-K/A
589Ridgewood EnergyLFund3/18/201010-K
590Ridgewood EnergyMFund8/23/201010-K/A
591Ridgewood EnergyMFund3/17/201010-K
592Ridgewood EnergyOFund8/23/201010-K/A
593Ridgewood EnergyOFund3/22/201010-K
594Ridgewood EnergyPFund8/23/201010-K/A
595Ridgewood EnergyPFund3/11/201010-K
596Ridgewood EnergyQFund8/23/201010-K/A
597Ridgewood EnergyQFund2/26/201010-K
598Ridgewood EnergySFund8/23/201010-K/A
599Ridgewood EnergySFund3/16/201010-K
600Ridgewood EnergyTFund8/23/201010-K/A
601Ridgewood EnergyTFund3/4/201010-K
602Ridgewood EnergyUFund8/23/201010-K/A
603Ridgewood EnergyUFund3/4/201010-K
604Ridgewood EnergyVFund8/23/201010-K/A
605Ridgewood EnergyVFund3/11/201010-K
606Ridgewood EnergyWFund8/23/201010-K/A
607Ridgewood EnergyWFund3/23/201010-K
608Ridgewood EnergyXFund8/23/201010-K/A
609Ridgewood EnergyXFund2/24/201010-K
610Ridgewood EnergyYFund8/23/201010-K/A
611Ridgewood EnergyYFund2/25/201010-K
612Rockies Region8/27/201010-K/A
613Rockies Region3/31/201010-K
614Samson Oil Gas12/17/201020-F
615SMEnergy StMary Land2/24/201010-K
616Southwest Oil Gas FundIXA3/31/201010-K
617Southwest Oil Gas FundVIIA3/31/201010-K
618Southwest Oil Gas FundVIIIA3/31/201010-K
619Southwest Oil Gas FundXA3/31/201010-K
620Southwest Oil Gas FundXB3/31/201010-K
621Southwest Royalties FundIXB3/31/201010-K
622Southwest Royalties FundV3/31/201010-K
623Southwest Royalties FundVI3/31/201010-K
624Southwest Royalties FundVIIB3/31/201010-K
625Southwest Royalties FundVIIIB3/31/201010-K
626Southwest Royalties FundXA3/31/201010-K
627Southwest Royalties FundXB3/31/201010-K
628Southwest Royalties FundXC3/31/201010-K
629Synergy Resources11/24/201010-K
630Tengasco3/31/201010-K
631Tetra Technologies3/1/201010-K
632Triangle Petroleum4/9/201010-K
633Ultra Petroleum2/26/201010-K
634Unit9/17/201010-K/A
635Unit2/23/201010-K
636USEnergy12/23/201010-K/A
637USEnergy12/22/201010-K/A
638USEnergy3/12/201010-K
639Virginia Electric Power2/26/201010-K
640Alabama Gas2/25/200910-K
641Apache3/2/200910-K
642Apache Offshore Investments3/2/200910-K
643Apco Oil3/16/200910-K
644ATPOil3/13/200910-K
645Carrizo Oil3/13/200910-K
646Chaparral Energy3/31/200910-K
647Chesapeake Energy3/2/200910-K
648Clayton Williams Energy3/13/200910-K
649CNOOC5/8/200920-F
650Continental Resources2/27/200910-K
651Devon Energy2/27/200910-K
652Earthstone Energy Basic Earth6/18/200910-K
653Eastern American Natural Gas Trust3/13/200910-K
654Eco PetrolSA6/30/200920-F
655Energen2/25/200910-K
656Energy PartnersEPL8/5/200910-K
657Eni SpA5/14/200920-F
658EQT2/20/200910-K
659Harvest Natural Resources3/13/200910-K
660Hess Bakken American Oil3/16/200910-K
661Mariner Energy3/2/200910-K
662Mc Moran Exploration2/27/200910-K
663Nexen2/20/200910-K
664Northern Oil Gas3/16/200910-K
665Occidental Petroleum2/24/200910-K
666PDCEnergy2/27/200910-K
667Pemex6/30/200920-F
668Petro Quest2/27/200910-K
669Petroleum Development2/27/200910-K
670Plains Exploration2/26/200910-K
671Prime Energy4/3/200910-K
672QEPResources2/27/200910-K
673Questar2/27/200910-K
674Repsol2/27/200920-F
675Ridgewood EnergyKFund3/25/200910-K
676Ridgewood EnergyLFund3/23/200910-K
677Rockies Region4/28/200910-K
678Samson Oil Gas12/17/200910-K
679SMEnergy StMary Land2/24/200910-K
680Southwest Royalties FundIXB3/27/200910-K
681Southwest Royalties FundV3/27/200910-K
682Tetra Technologies3/2/200910-K
683Triangle Petroleum4/9/200910-K
684Triangle Petroleum4/9/200910-K
685Ultra Petroleum2/23/200910-K
686Unit2/24/200910-K
687USEnergy3/13/200910-K
688Alabama Gas Corp2/25/200810-K
689Apache Corporation2/29/200810-K
690Apache Offshore Investments2/29/200810-K
691Apco Oil3/11/200810-K
692ATPOil3/7/200810-K
693Bill Barrett Corporation2/27/200810-K
694Canadian Natural Resources Ltd.3/28/200840-F
695Carrizo Oil & Gas, Inc.2/29/200810-K
696Chesapeake Energy Corporation2/29/200810-K
697Cimarex Energy Co.3/13/200810-K/A
698Cimarex Energy Co.2/28/200810-K
699Clayton Williams Energy, Inc.3/14/200810-K
700CNOOC Ltd6/26/200820-F
701Continental Resources, Inc.3/17/200810-K
702Devon Energy Corporation6/9/200810-K/A
703Devon Energy Corporation2/28/200810-K
704Eastern American Natural Gas Trust3/14/200810-K
705El Paso Corporation2/28/200810-K
706Energen Corporation2/25/200810-K
707Energy Partners, LTD. (EPL)3/3/200810-K
708Energy XXI (Bermuda) Ltd9/11/200810-K
709Eni SpA5/21/200820-F
710EQT Corporation2/22/200810-K
711Harvest Natural Resources, Inc.4/11/200810-K/A
712Harvest Natural Resources, Inc.3/17/200810-K
713Hess Bakken Investments (American O&G)3/17/200810-K
714Hyperdynamics Corp9/30/200810-K
715Hyperdynamics Corp4/18/200810-K/A
716Loews Corporation (Highmount Exploration)2/27/200810-K
717Mariner Energy, Inc.2/29/200810-K
718McMoRan Exploration Co.4/24/200810-K/A
719McMoRan Exploration Co.3/17/200810-K
720Nexen Inc2/21/200810-K
721Occidental Petroleum Corporation2/22/200810-K
722PDCEnergy4/29/200810-K/A
723PDCEnergy3/20/200810-K
724Pemex6/30/200820-F
725Petro Quest2/29/200810-K
726Plains Exploration & Production Company8/6/200810-K/A
727Plains Exploration & Production Company2/27/200810-K
728PrimeEnergy Corporation3/27/200810-K
729QEP Resources, Inc.2/27/200810-K
730Questar Corporation2/27/200810-K
731Rancher Energy Corp.6/30/200810-K
732Repsol YPF, S.A.5/30/200820-F
733Ridgewood Energy K Fund LLC3/24/200810-K
734Ridgewood Energy L Fund LLC3/31/200810-K
735Ridgewood Energy M Fund LLC3/31/200810-K
736Ridgewood Energy O Fund LLC3/21/200810-K
737Ridgewood Energy P Fund LLC3/14/200810-K
738Ridgewood Energy Q Fund LLC3/27/200810-K
739Ridgewood Energy S Fund LLC3/17/200810-K
740Ridgewood Energy T Fund LLC3/14/200810-K
741SM Energy Company (St. Mary Land)3/5/200810-K/A
742SM Energy Company (St. Mary Land)2/22/200810-K
743Tengasco, Inc.3/31/200810-K
744Tetra Technologies Inc2/29/200810-K
745Triangle Petroleum Corp4/29/200810-K
746Ultra Petroleum Corp.2/26/200810-K
747Unit Corporation2/28/200810-K
748Vanguard Natural Resources, LLC3/31/200810-K
749Alabama Gas Corp2/27/200710-K
750Apache Corporation3/1/200710-K
751Apache Offshore Investments3/1/200710-K
752Apco Oil3/14/200710-K
753ATPOil3/2/200710-K
754Bill Barrett Corporation2/28/200710-K
755Canadian Natural Resources Ltd.3/30/200740-F
756Carrizo Oil & Gas, Inc.4/2/200710-K
757Chesapeake Energy Corporation3/1/200710-K
758Cimarex Energy Co.2/28/200710-K
759Clayton Williams Energy, Inc.3/16/200710-K
760CNOOC Ltd6/29/200720-F
761Dejour Energy Inc.12/7/200720-F/A
762Devon Energy Corporation2/28/200710-K
763Eastern American Natural Gas Trust3/16/200710-K
764El Paso Corporation2/28/200710-K
765Energen Corporation2/27/200710-K
766Energy Partners, LTD. (EPL)4/30/200710-K/A
767Energy Partners, LTD. (EPL)3/1/200710-K
768Energy XXI (Bermuda) Ltd9/27/200710-K
769EQT Corporation2/23/200710-K
770Harvest Natural Resources, Inc.3/13/200710-K
771Hess Bakken Investments (American O&G)4/11/200710-K/A
772Hess Bakken Investments (American O&G)4/2/200710-K
773Hyperdynamics Corp9/28/200710-K
774Mariner Energy, Inc.4/2/200710-K
775McMoRan Exploration Co.3/16/200710-K
776Nexen Inc4/3/200710-K/A
777Nexen Inc4/2/200710-K/A
778Nexen Inc2/26/200710-K
779Occidental Petroleum Corporation2/27/200710-K
780PDCEnergy5/23/200710-K
781Pemex7/2/200720-F
782Petro Quest3/5/200710-K
783Petrohawk Energy Corporation4/30/200710-K/A
784PrimeEnergy Corporation4/2/200710-K
785QEP Resources, Inc.3/22/200710-K/A
786QEP Resources, Inc.3/2/200710-K
787Questar Corporation2/28/200710-K
788Rancher Energy Corp.10/10/200710-K/A
789Rancher Energy Corp.9/7/200710-K/A
790Rancher Energy Corp.6/29/200710-K
791Repsol YPF, S.A.6/25/200720-F
792Sabine Oil2/28/200710-K
793SM Energy Company (St. Mary Land)3/21/200710-K/A
794SM Energy Company (St. Mary Land)2/23/200710-K
795Stone Energy Corporation2/28/200710-K
796Tengasco, Inc.3/30/200710-K
797Tetra Technologies Inc3/1/200710-K
798Ultra Petroleum Corp.2/28/200710-K
799Unit Corporation3/1/200710-K
800Whiting Petroleum Corporation2/28/200710-K
801Williams Companies Inc.2/28/200710-K
802Alabama Gas Corp3/15/200610-K
803Apache Corporation3/14/200610-K
804Apache Offshore Investments10/12/200610-K/A
805Apache Offshore Investments3/14/200610-K
806Apco Oil3/10/200610-K
807ATPOil3/15/200610-K
808Bill Barrett Corporation3/3/200610-K
809Canadian Natural Resources Ltd.4/5/200640-F
810Carrizo Oil & Gas, Inc.6/12/200610-K/A
811Carrizo Oil & Gas, Inc.4/11/200610-K/A
812Carrizo Oil & Gas, Inc.4/10/200610-K
813Chesapeake Energy Corporation3/14/200610-K
814Cimarex Energy Co.3/9/200610-K
815Clayton Williams Energy, Inc.3/16/200610-K
816CNOOC Ltd6/26/200620-F
817Devon Energy Corporation3/3/200610-K
818Eastern American Natural Gas Trust3/23/200610-K/A
819Eastern American Natural Gas Trust3/16/200610-K
820El Paso Corporation3/7/200610-K
821Energen Corporation3/15/200610-K
822Energy Partners, LTD. (EPL)2/27/200610-K
823Eni SpA6/21/200620-F
824EQT Corporation2/24/200610-K
825Harvest Natural Resources, Inc.2/27/200610-K
826HKN, Inc.2/28/200610-K
827Hyperdynamics Corp10/13/200610-K
828Mariner Energy, Inc.3/31/200610-K
829McMoRan Exploration Co.3/15/200610-K
830Occidental Petroleum Corporation3/1/200610-K
831PDCEnergy5/31/200610-K
832Pemex6/30/200620-F
833Petro Quest3/8/200610-K
834Plains Exploration & Production Company3/10/200610-K
835PrimeEnergy Corporation4/6/200610-K
836QEP Resources, Inc.3/13/200610-K
837Questar Corporation3/2/200610-K
838Sabine Oil3/16/200610-K
839Santa Fe Energy Trust3/16/200610-K
840SM Energy Company (St. Mary Land)2/27/200610-K
841Southwest Oil & Gas Income Fund VII A L P3/30/200610-K
842Stone Energy Corporation8/25/200610-K/A
843Stone Energy Corporation3/13/200610-K
844Tengasco, Inc.3/20/200610-K
845Tetra Technologies Inc3/16/200610-K
846Torch Energy Royalty Trust3/31/200610-K
847Ultra Petroleum Corp.3/31/200610-K
848Unit Corporation3/13/200610-K
849Venoco, Inc.4/5/200610-K
850Whiting Petroleum Corporation2/28/200610-K
851Alabama Gas Corp3/15/200510-K
852Apache Corporation3/16/200510-K
853Apache Offshore Investments3/16/200510-K
854Apco Oil3/14/200510-K
855ATPOil10/28/200510-K/A
856ATPOil3/31/200510-K
857Bill Barrett Corporation3/16/200510-K
858Canadian Natural Resources Ltd.4/1/200540-F
859Carrizo Oil & Gas, Inc.5/2/200510-K/A
860Carrizo Oil & Gas, Inc.3/31/200510-K
861Chesapeake Energy Corporation3/9/200510-K
862Cimarex Energy Co.3/15/200510-K
863Clayton Williams Energy, Inc.3/16/200510-K
864CNOOC Ltd9/7/200520-F/A
865CNOOC Ltd6/22/200520-F
866Devon Energy Corporation3/9/200510-K
867Eastern American Natural Gas Trust5/2/200510-K/A
868Eastern American Natural Gas Trust3/31/200510-K
869El Paso Corporation6/16/200510-K/A
870El Paso Corporation5/6/200510-K/A
871El Paso Corporation4/8/200510-K/A
872El Paso Corporation3/28/200510-K
873Energen Corporation3/15/200510-K
874Energy Partners, LTD. (EPL)3/14/200510-K
875EQT Corporation2/25/200510-K
876Harvest Natural Resources, Inc.2/23/200510-K
877HKN, Inc.6/23/200510-K/A
878HKN, Inc.4/13/200510-K/A
879HKN, Inc.4/5/200510-K/A
880HKN, Inc.3/16/200510-K
881McMoRan Exploration Co.3/15/200510-K
882Occidental Petroleum Corporation3/1/200510-K
883Petro Quest3/8/200510-K
884Plains Exploration & Production Company4/22/200510-K/A
885Plains Exploration & Production Company4/4/200510-K/A
886Plains Exploration & Production Company3/16/200510-K
887PrimeEnergy Corporation4/6/200510-K
888QEP Resources, Inc.3/31/200510-K
889Questar Corporation3/8/200510-K/A
890Questar Corporation3/7/200510-K
891Repsol YPF, S.A.6/30/200520-F
892Sabine Oil3/15/200510-K
893Santa Fe Energy Trust3/15/200510-K
894SM Energy Company (St. Mary Land)2/25/200510-K
895Stone Energy Corporation3/9/200510-K
896Tengasco, Inc.9/13/200510-K/A
897Tengasco, Inc.3/31/200510-K
898Tetra Technologies Inc3/16/200510-K
899Torch Energy Royalty Trust4/22/200510-K/A
900Torch Energy Royalty Trust4/15/200510-K
901Ultra Petroleum Corp.3/16/200510-K
902Unit Corporation3/15/200510-K
903Whiting Petroleum Corporation2/28/200510-K