## MEMORANDUM

**TO:** Project Record **FROM:** EPA **DATE:** April 2 , 2013 **SUBJECT: Summary of**  **Confidential Business Information Claims in Industry** 

**Responses to EPA’s CBM**  **Screen er**  **s and**  **Detailed Questionnaires** EPA used two information collection tools for the C oalbed M ethane (CBM) Extraction Industry : 1. 2008 Coalbed Methane Industry Screener ( “ S creener ” ) 1 

### , which EPA distributed to the entire industry ; and 2. Questionnaire for the Coalbed Methane Extraction Sector (“ Detailed Q uestionnaire ”) 2 

### , which EPA distributed to a subset of the industry

. EPA provided respondents with the Screener as a Microsoft® Excel spreadsheet and the Detailed Questionnaire as a Microsoft® Word form

. Operators submitting information to EPA may assert a business confidentiality claim covering the information. This is referred to as confidential business information (CBI). Operators may not claim effluent data or information that is otherwise publicly available in formation CBI. This memorandum summarizes the confidential business information (CBI) claims that operators made for information reported in response to the Screener and Detailed Questionnaire and discusses EPA’s rationale for developing publicly availa ble versions of the CBM databases developed with information reported in response to the Screener and Detailed Questionnaire. EPA did not i nclude the individual responses (electronic or hardcop y) from the Screener or Detailed Questionnaire in the docket. Instead, EPA entered the collected information i nto four CBM databases to conduct anal ys es on the industry

. EPA included these d atabases in th e docket, as detailed in Table 1

.

1 A blank copy of the Screener is located in the EPA docket (EPA

- HQ

- OW

- 2006

- 0771, DCN10067 ). 2 A blank copy of the Detailed Questionnaire is located in the EPA docket (EPA

- HQ

- OW

- 2006

- 0771, DCN 10072 ).Mem orandum

April 2, 2013 Page 2 

### Table 1. Summary of CBM Databases Included in the EPA Docket **(EPA**
**- HQ** 
**- OW** 
**- 2010** 
**- 0824)**  **CBM Database Nam**  **e Description**  **Source of inform**  **ation Non**  **- CBI** 

**Docket CBI Docket**  Screener Database Responses to the Screener, including operating status, business size, gas production, CBM project size, and discharge practices. 2008 Screener Not Applicable 

###  DCN: CBM00681

Financial and Economic Detailed Questionnaire Database (Econ Database) R esponses from Part B of the Detailed Questionnaire , including firm

- level and project

- level financial data

. 2008 Detailed Questionnaire Not Applicable 

###  DCN: CBM00654 Engineering Detailed Questionnaire Database (Engineering Database) R esponses from Part A and Part C of the Detailed Questionnaire , including project and w ater management system information on operations and costs

. 2008 Detailed Questionnaire Not Applicable 

###  DCN: CBM00656

Effluent Pollutant Database Detailed Questionnaire Pollutant Database Data collected from state permitting programs in Alabama, Montana, and Wy om ing and pollutant data submitted in Part C of the Detailed Questionnaire by operators who discharged all or a portion of CBM produced w ater to surface water. Operators who submitted dat a provided w ell, pre

- and post
- treatment, and discharge data, or a combination thereof

. 2008

Detailed Questionnaire (for operators with direct discharging permits) and State DMR data 

### 

DCN: CBM00689 (effluent data only) 

### 

DCN: CBM00668



### 1.0 **S UMMARY OF**  

### I **NFORMATION** 

### C **OLLECTED IN THE** 

### S **CREENER AND**  

### CBI **C LAIMS**  **FOR** 

### S **CREENER** 

### R**ESPONSES** 

### EPA identified the primary unit of anal ys is for the CBM industry as a “ project, ” defined as a well, group of wells, lease, group of leases, or recognized unit that is operated as an economic unit when making production decisions. The Screener required operators to group their CBM wells into projects. Table A

- 1 in Attachment 1 lists the 251 operators that received S creeners . T he screener requested the following information from each operator :

 

### Small business status;
 

### V e rificati on that the operator produced CBM in 2008; and
 

### Number of p rojects operated

.Mem orandum

April 2, 2013 Page 3 

### F or each project, the screener requested the following information for calendar y ear 2008:

 

### Numbers of wells;
 

### Gas production; and
 

### Produce d water management methods. EPA did not provide respondents a means to claim their responses to individual question s in the Screener as CBI ; however, EPA instructed operators to identify responses they

considered CBI in the Remarks section of the Screener. In the responses to the Screener, s ome operators remarked that all information in the Screener was CBI, while others claimed certain respo nses were CBI

. EPA developed a database that contains responses to the Screener for each CBM operator (and their respective projects ) ( Screener Database ). EPA created CBI fields in the database for each question in the Screener and updated the fields wi th the CBI indications from the Re marks section of the Screener. EPA used this database to determine the sample of CBM operators and projects to select for the Detailed Questionnaire. EPA reviewed the Screener response CBI claims to determine whether th is database can be included in the publicly

- available portion of the EPA Docket (EPA

- HQ

- OW

- 2010

- 0824)

. EPA reviewed the number of operators with CBI claims for the Screener (as summarized in Table 2 )

. Six percent of operators reported any information in th e Screener CBI and o nl y three pe rcent of the operators claimed all their information in the Screener CBI

.

**Table 2**  **. CBI Summary of Screener Responses** Total number of operators 251 Operators claiming **any** information CBI 15 Operators claiming **all** information CBI 8 **% any**  **inform ation**  **CBI 6**  **% % all**  **inform ation**  **CBI 3%** 



### 2.0 **S UMMARY OF**  

### I **NFORMATION** 

### C **OLLECTED IN THE** 

### D **ETAILED** 

### Q **UESTIONNAIRE AND** 

### CBI **C LAIMS ON THE**  

### R**ESPONSES TO THE** 

### D **ETAILED** 

### Q **UESTIONNAIRE** 

### EPA used the information collected from the CBM industry in the Screener to select a sample of operators and projects required to complete the Detailed Questionnaire. Table A

- 2 in Attachment 1 lists the 105 operators to which EPA sent Detailed Questionnaires and identifies operators that responded

.Mem orandum

April 2, 2013 Page 4 

### The Detailed Questionnaire requested project

- level financial data (Part B of the Detailed Questionnaire) and technical data (Parts A and C of the Detailed Questionnaire) for calendar ye ar 2008 including the following:

 

### G eneral information on the operator and parent company ;  

### Produced water volumes, water qualit y, and treatment, reuse, and disposal methods;
 

### Destination of CBM produced water;
 

### Produced water treatment methods, including sy stem design, operating, and cost information;
 

### Pollutant monitoring data ;  

### Firm

- level financial information including information from calendar y ears 2006 and 2007;
 

### Historic project information on development for a subset o f recently constructed projects ; and
 

### Project

- level financial information including projections of future co st and production d ata. EPA included question

- specific CBI indicators in the Detailed Questionnaire. Respondents also had the option to mark a box labeled “Check here to claim all elig ible data are CBI” (“allCBI”). If a respondent marked the allCBI claim, EPA considered all questions in the Detailed Questionnaire as CBI. EPA developed three databases that contain responses to the Detailed Questionnaire:

 

### Financial and Economic Detailed Questionnaire Database (Economic Database)
 

### Engineering Detail ed Questionnaire Database (Engineering Database)
 

### Detailed Questionnaire Pollutant Database (Pollutant Database) EPA included CBI indications for each question in Part B in the Economic Database and for each question in Parts A and C in the Engineering database. EPA also included the allCBI indication in both the Economic and Engineering databases

. The Pollutant database contains a CBI indicator for each project that submitted data. Where respondents marked the allCBI box, EPA updated all the question

- specific CBI fields in the Economic and Engineering databases and the project

- specific CBI field in the Pollutant database to indicate CBI. EPA reviewed the CBI claims to determine whether databases developed with data provided in response to the Detailed Questionnaire can be included in the publicly available portion of the EPA Docket (EPA

- HQ

- OW

- 2010

- 0824). All CBI Claims Because respondents may have provid ed responses to Parts A, B, and/or C of the Detailed Questionnaire, the databases may differ in the operators and projects included in them. For example, a respondent may have provided only

financial data in Part B of the Detailed Questionnaire but did not provide responses in the technical portion (Parts A and C). In this case,Mem orandum

April 2, 2013 Page 5 

### the information from the respondent may be included in the Economic database but not in the Engineering database. EPA reviewed the number of survey respondents with allCBIclaims in the Detailed Questionnaire (as summarized in Table 3 ). At least 6 9 percent of the respondents claimed the entire survey

CBI. **Table 3**  **. Summary of Surveys with a**  **llCBI Responses to**

**the Detailed Questionnaire Engineering Database**  Total Surveys 85
a llCBI Surveys 60 **% Surveys with all**  **CBI 71**  **Economic Database** Total Surveys 87
a llCBI Surveys 60 **% Surveys with all**  **CBI 69**  

### EPA used the Detailed Questionnaire databases to anal yz e several subsets of responses

. EPA grouped responses by basin, b y business size, by project, b y treatment method, and by discharge destination to complete anal ys es of the CBM industry

. Table 4 provides a breakdown of the allCBI claims by

basin

. Table 4 also presents a breakdown of allCBI claims specific to operators operating any discharging projects and a breakdown of allCBI claims specific to small businesses. These examples show that the level of CBI can change when smaller subsets of data are used. EPA must evaluate CBI claims based on the level of an aly sis that EPA performs. **Table 4**  **. Basin Summary of Operators with allCBI Responses to the Detailed**  **Questionnaire a** 

**Basin All Surveys**  **Surveys from Discharging Operators** 

**Total Surveys**  **Number of**

**Surveys with a**  **llCBI Claim**  **b Percent of** 

**Surveys Claiming CBI**  **Total**

**Surveys Number of** 

**Surveys with a**  **llCBI Claim b**  **Percent of**

**Surveys Claiming CBI**  Appalachian 12 7 58% 3 3 100% Arkla 2 1 50% 0 0

- Black Warrior 8 6 75% 7 5 71% Cahaba 2 2 100% 2 2 100% Illinois 1 1 100% 2 2 100% Permian/Ft. Worth 1 1 100% 0 0

- **Ea stern US**  **26 18**  **69% 14**  **12 93%** Mem orandum

April 2, 2013 Page 6 

### Table **4 .**  **Basin Summary of Operators with allCBI Responses to the Detailed Questionnaire**  **a**

**Basin All Surveys**  **Surveys from Discharging Operators** 

**Total Surveys**  **Number of**

**Surveys with a**  **llCBI Claim**  **b Percent of** 

**Surveys Claiming CBI**  **Total**

**Surveys Number of** 

**Surveys with a**  **llCBI Claim b**  **Percent of**

**Surveys Claiming CBI**  Green River 5 4 80% 1 1 100% Pow der River (MT) 3 2 67% 1 1 100% Pow der River (WY) 34 21 62% 19 12 63% Raton 4 3 75% 2 2 100% Wind River 1 1 100% 0 0

- San Juan 12 9 75% 0 0

- Uinta

Piceance 9 8 89% 0 0

- **We stern US**  **68 48**  **71% 23**  **16 91%**  **Total 94**  **c 66**  **70% 37**  **28 76%** 
a The counts and percentages in this table represent the CBI claims from respondents of the Detailed Questionnaire. b Operators ma y also have claimed individual questions CBI. This represents the minimum number of CBI claims for the basin. c Note that several surveys had CBM operat ors that operated in more than one basin. Therefore, an allCBI response in a survey ma y be counted in more than one basin. 

### Any CBI Claims The D etailed Questionnaire also allowed operators who did not make an a llCBIclaim to indicate if responses to individual questions contained CBI

. Every survey received b y EPA had at least one CBI r esponse , as summarized in Table 5

.

**Table 5**  **. Summary of Surveys with Any CBI**  **Responses to**

**the Detailed Questionnaire** Total Surveys 8 7 Number of Surveys with Any CBI 8 7 **% Surveys**  **with Any CBI**  **100%** 

### Select CBI Claims EPA reviewed the CBI claims for several questions from the Detailed Questionnaire that EPA used in its analy ses . The question responses can be generally grouped into the following categories

.

 

### F irm

- level financial (Questions in Part B Sections 1 and 2) ;  

### Project

- level financial (Questions in Part B Section 3) ;  

### Production and produced water management s ys tem ( PWMS ) operations (Questions C2

- 3 and C2

- 4) ;  

### PWMS c osts ( Questions C 2

- 5 through C2

- 8) ;Mem orandum

April 2, 2013 Page 7



###  

### Discharge practices (Questions C3

- 2 through C3

- 6) ;  

### Treatment de sign and costs (Questions C3

- 9 through C3

- 13) ; and
 

### Pollutant data (Question C4

- 1)

. Table 6 summarizes the CBI claims for all reported data element s in each category of responses

. This table incl udes operators who checked the a llCBI claim or any of the individual questions in the section CBI. As shown in the table, the majority of the data were claimed CBI.

**Table 6.**  **Summary of CBI Responses to the Detailed Questionnaire** 

**– Select Question Categories**  **a**

**Firm**
**- level financial**  Total Responses 14,706 CBI Responses 10, 760 **% CBI** 73% **Project**
**- level financial**  Total Responses 2,175 CBI Responses 1,5 62 **% CBI** 7 2 %

**Production and PWMS operations** Total Responses 462 CBI Responses 324 **% CBI** 70 % **PWMS costs** Total Responses 693 CBI Responses 536 **% CBI** 77 % **Discharge Practices** Total Responses 833 CBI Responses 611 **% CBI** 73%

**Treatm ent design and costs**  Total Responses 1 31 CBI Responses 119 **% CBI** 91 % **Pollutant Data**  Total Responses 184 CBI Responses 14 0 **% CBI** 7 7 %
a Total count of CBI claims is calculated as the number of projects responding to the category of questions times the number of responses for the project times the number of questions in the category.Mem orandum

April 2, 2013 Page 8 

### 3.0 **C ONSIDERATIONS FOR**  

### CBI
**- D**  **EDUCIBLE** 

### I **NFORMATION** 

### CBI

- deducible information is that which could be combined with non

- CBI information and/ or aggregated CBI and non

- CBI data to determine (or back calculate) CBI information. Where an aggregated output includes totals summed from both CBI and non

- CBI data, th e CBI responses may

be deducible from the output if the non

- CBI data is also publicly available. Ty pically , CBI data can be masked (i.e., is non

- deducible) if it is combined with at least two other CBI data points into an aggregated value (i.e., at least three CBI data points in the grouping). Some of the anal ys es that EPA performed used data for onl y a subset of responses (e.g., operators b y basin, discharging operators, small business operators ). In cases where EPA anal yz ed onl y a subset of responses, E PA assessed whether there were three or more operators in the subset that claimed the information as CBI. The scenarios below illustrate how CBI can be deduced from aggregated data and non

- CBIresponses : **Scenario 1:** EPA is using cost data from 10 operato rs in an anal ys is. Two operators , CBI

- A and CBI

- B, claimed the data CBI and the remaining 8 did not make confidentiality claims. EPA is considering whether to release the aggregated summary cost for the 10 operators as well as the non

- CBI data from the 8 o perators. In this case, EPA can not release the 8 non

- CBIresponses because operator CBI

- A could use this publicly

available information and knowledge of their own costs to deduce Operator CBI

- B’s costs. CBIdeducible information would be released

. **Scenario 2:** EPA is using cost data from 10 operators in an anal ys is. Five operators claimed the data CBI and the remaining five did not make confidentiality claims. EPA is considering whether to release the aggregated summary costs for the 10 operators and the non

- CBI data from the 5 operators. In this case, EPA can release the 5 non

- CBI responses. The individual 5 CBI operators would not have enough information to determine the specific costs for their competitors. **Scenario 3**  **:** EPA is using cost data from 10 operators in an anal ys is. Five operators claimed the data CBI and the remaining five did not make confidentiality claims. EPA would also like to aggregate and provide data b y small business status. The table below presents the operator responses b y sma ll business status. EPA is considering whether to release the aggregated summary costs for the 10 operators and the non

- CBIdata from the 5 operators.Mem orandum

April 2, 2013 Page 9 **Cost Data Used in Analysis Industry Analysis**  **Sm all Business Analysis**  **Total Responses** 10 4 **Number of CBI**  **Responses** 5 2 **Number of Non**
**- CBI**  **Responses** 5 2 

### As shown in the table, EPA would not be able to present aggregated information for small businesses and release the non

- CBI data. Operators could use the aggregated small business data and the two non - CBIresponses to deduce information about the two CBI small business operators. **4.0 EPA**  **R**

**ATIONALE FOR** 

### D **EVELOPING** 

### P **UBLICLY** 

### A **VAILABLE** 

### D **ATABASE S**  

### Using the summary

of CBI claims in the responses to the Screener and Detailed Questionnaire and EPA’s consideration for CBI deducibility , EPA determined whether it was possible to provide the CBM databases containing information collected from industry in the public record

. Screener Database Overall, onl y six percent of the operators (15 out of 251 operators) claimed any information CBI (see Table 2)

. As discussed previously , because the Screener did not contain CBI indicators for each question, EPA is not providing a sanitized database to protect the potential for CBI disclosure from the Screeners. The full CBI database will be held in the CBI record. Engineering and Economic Databases EPA used information from the Detailed Questionnaire to develop an analysis of existing discharging CBM projects. As shown in Table 6, developing sanitized versions of th e Detailed Questionnaire databases will require EPA to eliminate at least 70 percent of the responses EPA received. EPA determined that it would not be appropriate to sanitize these databases because the very limited amount of non

- CBI information (30 perce nt or less) would not appropriatel y represent CBM operations. EPA considered whether aggregated results could be presented at the basin level while still protecting CBI . Table 4 shows that seven basins had three or more CBI responses when considering the entire CBM industry . However, when EPA considered smaller subsets of the data for which EPA has conducted anal ys es, EPA identified only four of the thirteen basins for which EPA can provide sanitized data. EPA considered the level of CBIdata that would need to be removed for these four basins to devel op sanitized engineering and economic database s and determined it was not effective to generate sanitized versions of the databas es . The engineering and economic databases containing all responses from the Detailed Questionnaire are included in the CBI record

.Mem orandum

April 2, 2013 Page 10


### Pollutant Database As noted in Table 1, the pollutant database contains data submitted with the Detailed Questionnaire b y operators who discharge an y or all CBM produced water to surface water. Operators submitted well, pre

- and post

- treatment, and discharge data. The database also contains data from state discharge monitoring reports from the Alabama, Montana, and Wyoming permitting programs. As shown in Table 6, operators c laimed 73 percent of the pollutant data submitted with the Detailed Questionnaire as CBI. Although operators may have claimed discharge data CBI in the Detailed Questionnaire , discharge data are not eligible for a CBI claim

. As such, EPA can provide a non

- CBIdatabase containing all discharge data used in EPA’s analy sis of the CBM industry

. This database includes discharge data reported with the Detailed Questionnaire and data from discharge monitoring reports submitted through state permitting programs. EP A did not include pollutant data for sample points at the well or at pre

- and post

- treatment points in this database because they

were appropriatel y claimed as CBI

. The pollutant database containing pollutant data for all locations, including at the well and at treatment locations upstream from the point of discharge, is also included in the CBI portion of the docket.Mem orandum

April 2, 2013 Attachment 1 

### Attachment 1

**Table A**
**- 1. List of Operators Receiving Screener**  **Surveys**
**Basin Operator nam**  **e** Anadarko BBR OIL CORPORATION Anadarko Belport Oil Inc. Anadarko BIXLER CHAD JR Anadarko Bratco Operating Company Anadarko BROWER OIL & GAS CO., INC Anadarko BULLSEYE OPERATING LLC Anadarko CBM GAS COMPANY LLC Anadarko CONCORDE RESOURCES CORPORATION Anadarko CONSTELLATION ENERGY PARTNERS Anadarko DAVIS OPERATING COMPANY Anadarko DFP OIL COMPANY Anadarko EAKIN EXPLORATION INC Anadarko ENDEAVOR ENERGY RESOURCES, LP Anadarko Envirotek Fuel Systems

- Out of Business Anadarko HARRISON OIL & GAS INC Anadarko LAPETCO INC Anadarko LISTON V DEAN Anadarko MAHALO ENERGY (USA) INC Anadarko NEWFIELD EXPL MIDCONTINENT INC Anadarko OKAN GAS COMPANY LLC Anadarko PANOAK OIL & GAS CORPORATION Anadarko PERFORMANCE ENERGY PARTNERS LLC Anadarko PETROHAWK OPERATING COMPANY Anadarko PONTOTOC PRODUCTION COMPANY INC/ASCENT ENERGY, INC. Anadarko POWER OIL COMPANY Anadarko PR Operating Anadarko PRICE OPERATING COMPANY INC Anadarko PUTNAM ROY D Anadarko ROCKFORD CBM LLC Anadarko ROGERS COUNTY COAL SEAM LLC Anadarko Slayden, James C. Anadarko STITES ENERGY LLC Appalachian APPALACHIAN ENERGY Appalachian CNX Gas Company LLC Appalachian COAL GAS RECOVERY LLC Appalachian COAL GAS TRANSPORTATION, LLCMem orandum

April 2, 2013 Page 12 

### Table A
**- 1. List of Operators Receiving Screener**  **Surveys**

**Basin Operator nam**  **e** Appalachian Dominion Exploration & Production Inc. Appalachian Enervest Operating Co. Appalachian EQT Production Appalachian GEOMET, INC. Appalachian JESMAR ENERGY Appalachian NORTHPORT PRODUCTION COMPANY Appalachian Penn Virginia Oil & Gas Corporation Appalachian RANGE RESOURCES

- APPALACHIA, LLC Appalachian RANGE RESOURCES

- PINE MOUNTAIN INC. Appalachian RIDGEVIEW GAS COMPANY Appalachian Vitruvian Exploration Arkla CHC ENERGY, LLC Arkla SOUTHWESTERN ENERGY PROD. CO. Arkom a Ardmore Production & Exploration Co. Arkom a ARKOMA GAS COMPANY Arkom a BC OPERATING INC Arkom a BEAR PRODUCTION INC Arkom a BROWER OIL & GAS CO., INC Arkom a Canaan Resources LLC Arkom a CHESAPEAKE OPERATING INC Arkom a CHOCTAW GAS COMPANY Arkom a COASTAL PLAINS ENERGY INC Arkom a DAVIS OPERATING COMPANY Arkom a Devon Energy Production Company, LP Arkom a DYNE EXPLORATION COMPANY Arkom a EL PASO E&P COMPANY, L.P. Arkom a EVANS PRODUCTION COMPANY Arkom a Galaxy Energy Inc. Arkom a J B DRILLING COMPANY Arkom a Jaco Energy Company, Inc. Arkom a LEFCO RESOURCES LLC Arkom a MARBET LLC Arkom a Meade Energy Corporation Arkom a MONARCH ENERGY COMPANY LLC Arkom a MUSTANG FUEL CORPORATION Arkom a NADEL AND GUSSMAN LLC Arkom a O G P OPERATING INCMem orandum

April 2, 2013 Page 13 

### Table A
**- 1. List of Operators Receiving Screener**  **Surveys**

**Basin Operator nam**  **e** Arkom a Penn Virginia MC Operating Co., LLC Arkom a PETROHAWK OPERATING COMPANY Arkom a PETROLEUM DEVELOPMENT COMPANY Arkom a PETROQUEST ENERGY LLC Arkom a Pierco Energy Corp. Arkom a QUESTAR EXPLORATION & PRODUCTION COMPANY Arkom a REDWINE RESOURCES INC Arkom a RIO VISTA ENERGY Arkom a Shidler, Mark L., Inc. Arkom a Tag Team Resources LLC Arkom a UNIT PETROLEUM COMPANY Arkom a VECTRA CBM LLC Arkom a Vitruvian Exploration Arkom a WILDHORSE OPERATING COMPANY Arkom a WILLIAMS PROD MIDCONTINENT CO Arkom a WYNN

- CROSBY OPERATING LP Arkom a XTO Energy Inc. Black Warrior BLACK WARRIOR METHANE CORP. Black Warrior CHEVRON U.S.A. Black Warrior EL PASO E&P COMPANY, L.P. Black Warrior Energen Resources Corp. Black Warrior HighMount Black Warrior Basin LLC Black Warrior KAVANAUGH ENERGY SERVICES INC Black Warrior ROBINSON'S BEND OPERATING II, LLC Black Warrior SAGA PETROLEUM CORP. LLC Cahaba GEOMET, INC. Cahaba PetroNova, LLC Cahaba Vitruvian Exploration Cherokee/Forest City 3 B ENERGY INC Cherokee/Forest City Ad miral Bay USA Inc Cherokee/Forest City BOOM CO. Cherokee/Forest City CARROLL ENERGY, LLC Cherokee/Forest City Cherokee Wells LLC Cherokee/Forest City COLT ENERGY INC Cherokee/Forest City CONQUEST CHEROKEE, LLC Cherokee/Forest City DAKOTA PRODUCTION CO Cherokee/Forest City DARK TREASURES OIL & GAS/ALLENERGY, INC.Mem orandum

April 2, 2013 Page 14 

### Table A
**- 1. List of Operators Receiving Screener**  **Surveys**

**Basin Operator nam**  **e** Cherokee/Forest City DART CHEROKEE BASIN OPERATING COMPANY, LLC Cherokee/Forest City DAVIS OPERATING COMPANY Cherokee/Forest City DEVON SFS OPERATING Cherokee/Forest City DORADO GAS RESOURCES Cherokee/Forest City Double 7 O&G, LLC Cherokee/Forest City ENDEAVOR ENERGY RESOURCES, LP Cherokee/Forest City Enerjex Kansas Cherokee/Forest City FORT SCOTT METHANE PARTNERS, LLC Cherokee/Forest City Foster O&G Cherokee/Forest City G & J OIL COMPANY, INC Cherokee/Forest City GEO OIL & GAS SERVICES Cherokee/Forest City HEARTLAND OIL & GAS Cherokee/Forest City Jayhawk Energy, Inc. Cherokee/Forest City JONES & BUCK DEVELOPMENT Cherokee/Forest City JONES GAS CORPORATION Cherokee/Forest City LAYNE ENERGY, INC. Cherokee/Forest City LV NEODESHA OPERATIONS LLC Cherokee/Forest City Osage Resources LLC Cherokee/Forest City OSBORN ENRGY, LLC Cherokee/Forest City PRODUCTION MAINTENANCE SERVICE Cherokee/Forest City QUEST CHEROKEE, LLC Cherokee/Forest City ROXANNA PIPELINE, INC Cherokee/Forest City SEK Energy, LLC Cherokee/Forest City STAGECOACH E & P, LLC Cherokee/Forest City STP, INC. Cherokee/Forest City VERDE OIL COMPANY Cherokee/Forest City WILLIS ENERGY Green River Anadarko Petroleum Corporation Green River DOUBLE EAGLE PETROLEUM CO Green River HUDSON GROUP LLC Green River Merit Energy Company Green River PIONEER NATURAL RESOURCES USA, INC. Green River REDWINE RESOURCES INC Green River Warren E&P Inc Green River Yates Petroleum Corporation Illinois BARGER ENGINEERING Illinois BPI ENERGY, INC.Mem orandum

April 2, 2013 Page 15 

### Table A
**- 1. List of Operators Receiving Screener**  **Surveys**

**Basin Operator nam**  **e** Illinois Pulse Energy Systems Permian/Ft. Worth DIAMONDBACK OPERATING, LP Powder River (MT) FIDELITY EXPLORATION & PRODUCTION CO Powder River (MT) PINNACLE GAS RESOURCES INC Powder River (MT) ST.MARY LAND AND EXPLORATION Powder River (WY) 44 MAG PRODUCTION INC Powder River (WY) Anadarko Petroleum Corporation Powder River (WY) Arch Coal Powder River (WY) BERENERGY CORP Powder River (WY) BILL BARRETT CORPORATION Powder River (WY) BLACK DIAMOND ENERGY INC. Powder River (WY) BLACKSTONE OPERATING INC Powder River (WY) BOWERS OIL & GAS INC. Powder River (WY) C & H WELL SERVICING INC Powder River (WY) Cedar Resources Corporation Powder River (WY) Citation Oil & Gas Corp. Powder River (WY) COLEMAN OIL & GAS INC Powder River (WY) Com et Energy Services LLC Powder River (WY) Continental Production Company, LLC Powder River (WY) Cosner CBM LLC Powder River (WY) COX KENDALL JAY Powder River (WY) Devon Energy Production Company, LP Powder River (WY) DNR OIL & GAS INC Powder River (WY) DUNCAN OIL INC Powder River (WY) EMERALD OPERATING COMPANY Powder River (WY) FEDERATED OIL & GAS PROPERTIES, INC Powder River (WY) FIDELITY EXPLORATION & PRODUCTION CO Powder River (WY) Foundation Wyoming Land Company Powder River (WY) HIGH ENERGY INC. Powder River (WY) HIGH PLAINS GAS LLC Powder River (WY) HILCORP ENERGY COMPANY Powder River (WY) J.M. Huber Corporation Powder River (WY) JIM'S WATER SERVICE OF CO, INC. Powder River (WY) KENNEDY OIL Powder River (WY) L & J OPERATING INC Powder River (WY) LORAL OPERATING LLC Powder River (WY) MCCARTNEY ENGINEERING LCCMem orandum

April 2, 2013 Page 16 

### Table A
**- 1. List of Operators Receiving Screener**  **Surveys**

**Basin Operator nam**  **e** Powder River (WY) Medallion Exploration Powder River (WY) Merit Energy Company Powder River (WY) MERRIMAC OIL & GAS LLC Powder River (WY) Mountain Hawk Energy Powder River (WY) MTG OPERATING COMPANY Powder River (WY) NORTH FINN LLC Powder River (WY) NORTHWEST ENERGY LLC Powder River (WY) OILFIELD SALVAGE & SERVICE COMPANY Powder River (WY) OPES PRODUCTION INC Powder River (WY) Patriot Energy Resources, Inc. Powder River (WY) PAUPERS DREAM COMPANY Powder River (WY) Peabody Natural Gas LLC Powder River (WY) Pennaco Energy Incorporated Powder River (WY) Petro

- Canada Resources (USA) Inc. Powder River (WY) PETROX RESOURCES INC Powder River (WY) PINNACLE GAS RESOURCES INC Powder River (WY) PURE PETROLEUM LLC Powder River (WY) REDSTONE RESOURCES INC. Powder River (WY) RESOLUTE WYOMING, INC Powder River (WY) RIM OPERATING INC Powder River (WY) SANDS OIL COMPANY INC Powder River (WY) SOUTHWESTERN PRODUCTION CORP. Powder River (WY) ST.MARY LAND AND EXPLORATION Powder River (WY) STORM CAT ENERGY (USA) OPERATING CORP Powder River (WY) SUNCOR ENERGY (NATURAL GAS) AMERICA INC Powder River (WY) The Termo Com pany Powder River (WY) THOMAS OPERATING COMPANY INC Powder River (WY) TREND EXPLORATION I LLC Powder River (WY) Williams Production RMT Company Powder River (WY) WINDSOR GAS DRAW, LLC Powder River (WY) WINDSOR JEPSON, LLC Powder River (WY) XTO Energy Inc. Powder River (WY) Yates Petroleum Corporation Raton EL PASO E&P COMPANY, L.P. Raton PIONEER NATURAL RESOURCES USA, INC. Raton PRESCO Raton Red River Ranch Holdings, LLCMem orandum

April 2, 2013 Page 17 

### Table A
**- 1. List of Operators Receiving Screener**  **Surveys**

**Basin Operator nam**  **e** Raton XTO Energy Inc. San Juan BASIN MINERALS OPERATING COMPANY San Juan BENSON

- MONTIN

- GREER DRILLING CORP San Juan BIG RUN PRODUCTION COMPANY San Juan BP AMERICA PRODUCTION COMPANY San Juan BRECK OPERATING CORP San Juan CDX RIO, LLC San Juan CHAPARRAL OIL & GAS CO San Juan CHEVRON MIDCONTINENT LP San Juan CHEVRON U.S.A. San Juan COLEMAN OIL & GAS INC San Juan CONOCO PHILLIPS COMPNAY San Juan D J SIMMONS INC San Juan Devon Energy Company, LP San Juan Dugan Production Corp San Juan EL PAMCO INC. San Juan ELM RIDGE RESOURCES San Juan ENERGEN RESOURCES CORP. San Juan Enervest Operating LLC San Juan FOUR ST AR OIL & GAS COMPANY San Juan Gosney & Sons Inc. San Juan GREAT WESTERN DRILLING CO San Juan HOLCOMB OIL & GAS INC. San Juan KIMBELL OIL CO OF TEXAS San Juan Koch Exploration Company, LLC San Juan Kukui Operating Company San Juan M & G DRILLING CO INC San Juan MANANA GAS, INC San Juan MARALEX RESOURCES, INC. San Juan McElvain Oil & Gas Properties San Juan MCKAY OIL & GAS LLC San Juan Merrion Oil & Gas Corp San Juan N M & O OPERATING CO San Juan NOBLE ENERGY, INC. San Juan PABLO OPERATING COMPANY San Juan PETROGULF CORPORATION San Juan PRO NM ENERGY INCMem orandum

April 2, 2013 Page 18 

### Table A
**- 1. List of Operators Receiving Screener**  **Surveys**

**Basin Operator nam**  **e** San Juan RC RESOURCES CORP San Juan Red Willow Production Co San Juan REDWOLF PRODUCTION INC San Juan RICHARDSON OPERATING San Juan Robert L Bayless Producer, LLC San Juan ROCANVILLE CORP San Juan Roddy Production Co Inc. San Juan ROSETTA RESOURCES OPERATING LLC San Juan Running Horse Production Co. San Juan SAMSON RESOURCES COMPANY San Juan SCHALK DEVELOPMENT CO San Juan SG INTERESTS I L TD San Juan SYNERGY OPERATING LLC San Juan THOMPSON ENGR & PROD CORP San Juan TURNER PRODUCTION CO San Juan WEST LARGO CORP San Juan WILLIAMS PRODUCTION COMPANIES, LLC San Juan XTO Energy Inc. San Juan Yates Petroleum Corporation Uinta

- Piceance Anadarko Petroleum Corporation Uinta

- Piceance CONOCO PHILLIPS COMPNAY Uinta

- Piceance Laramie Energy II, LLC Uinta

- Piceance MARALEX RESOURCES, INC. Uinta

- Piceance Marathon Oil Company Uinta

- Piceance MARION ENRGY, INC. Uinta

- Piceance NATIONAL FUEL CORPORATION Uinta

- Piceance PIONEER NATURAL RESOURCES USA, INC. Uinta

- Piceance SG INTERESTS I LTD Uinta

- Piceance WHITMAR EXPLORATION COMPANY Uinta

- Piceance Williams Production RMT Company Uinta

- Piceance XTO Energy Inc. Wind River Devon Energy Production Company, LPMem orandum

April 2, 2013 Page 19



### Table **A**
**- 2**  **. List of Oper ators Receiving Detailed Questionnaires** 

**Basin Operator nam**  **e** Appalachian APPALACHIAN ENERGY Appalachian CNX Gas Company LLC Appalachian COAL GAS RECOVERY LLC Appalachian COAL GAS TRANSPORTATION, LLC Appalachian Dominion Exploration & Production Inc. Appalachian Enervest Operating Co. Appalachian EQT Production Appalachian GEOMET, INC. Appalachian JESMAR ENERGY Appalachian NORTHPORT PRODUCTION COMPANY Appalachian Penn Virginia Oil & Gas Corporation Appalachian RANGE RESOURCES

- APPALACHIA, LLC Appalachian RANGE RESOURCES

- PINE MOUNTAIN INC. Appalachian RIDGEVIEW GAS COMPANY Appalachian Vitruvian Exploration Arkla CHC ENERGY, LLC Arkla SOUTHWESTERN ENERGY PROD. CO. Black Warrior BLACK WARRIOR METHANE CORP. Black Warrior CHEVRON U.S.A. Black Warrior EL PASO E&P COMPANY, L.P. Black Warrior Energen Resources Corp. Black Warrior HighMount Black Warrior Basin LLC Black Warrior KAVANAUGH ENERGY SERVICES INC Black Warrior ROBINSON'S BEND OPERATING II, LLC Black Warrior SAGA PETROLEUM CORP. LLC Cahaba GEOMET, INC. Cahaba PetroNova, LLC Cahaba Vitruvian Exploration Green River Anadarko Petroleum Corporation Green River DOUBLE EAGLE PETROLEUM CO Green River HUDSON GROUP LLC Green River Merit Energy Company Green River PIONEER NATURAL RESOURCES USA, INC. Green River REDWINE RESOURCES INC Green River Warren E&P Inc Green River Yates Petroleum CorporationMem orandum

April 2, 2013 Page 20 

### Table **A**
**- 2**  **. List of Oper ators Receiving Detailed Questionnaires** 

**Basin Operator nam**  **e** Illinois BARGER ENGINEERING Illinois BPI ENERGY, INC. Illinois Pulse Energy Systems Permian/Ft. Worth DIAMONDBACK OPERATING, LP Powder River (MT) FIDELITY EXPLORATION & PRODUCTION CO Powder River (MT) PINNACLE GAS RESOURCES INC Powder River (MT) ST.MARY LAND AND EXPLORATION Powder River (WY) Anadarko Petroleum Corporation Powder River (WY) BILL BARRETT CORPORATION Powder River (WY) BLACK DIAMOND ENERGY INC. Powder River (WY) BLACKSTONE OPERATING INC Powder River (WY) Citation Oil & Gas Corp. Powder River (WY) COLEMAN OIL & GAS INC Powder River (WY) Com et Energy Services LLC Powder River (WY) Continental Production Company, LLC Powder River (WY) Continental Production Company, LLC Powder River (WY) Cosner CBM LLC Powder River (WY) Devon Energy Production Company, LP Powder River (WY) DNR OIL & GAS INC Powder River (WY) DUNCAN OIL INC Powder River (WY) EMERALD OPERATING COMPANY Powder River (WY) FIDELITY EXPLORATION & PRODUCTION CO Powder River (WY) HIGH ENERGY INC. Powder River (WY) HILCORP ENERGY COMPANY Powder River (WY) J.M. Huber Corporation Powder River (WY) JIM'S WATER SERVICE OF CO, INC. Powder River (WY) L & J OPERATING INC Powder River (WY) LORAL OPERATING LLC Powder River (WY) MCCARTNEY ENGINEERING LCC Powder River (WY) Merit Energy Company Powder River (WY) Mountain Hawk Energy Powder River (WY) MTG OPERATING COMPANY Powder River (WY) NORTH FINN LLC Powder River (WY) OPES PRODUCTION INC Powder River (WY) Patriot Energy Resources, Inc. Powder River (WY) Peabody Natural Gas LLC Powder River (WY) Pennaco Energy IncorporatedMem orandum

April 2, 2013 Page 21 

### Table **A**
**- 2**  **. List of Oper ators Receiving Detailed Questionnaires** 

**Basin Operator nam**  **e** Powder River (WY) Petro

- Canada Resources (USA) Inc. Powder River (WY) PETROX RESOURCES INC Powder River (WY) PINNACLE GAS RESOURCES INC Powder River (WY) PURE PETROLEUM LLC Powder River (WY) REDSTONE RESOURCES INC. Powder River (WY) RESOLUTE WYOMING, INC Powder River (WY) RIM OPERATING INC Powder River (WY) SANDS OIL COMPANY INC Powder River (WY) ST.MARY LAND AND EXPLORATION Powder River (WY) STORM CAT ENERGY (USA) OPERATING CORP Powder River (WY) SUNCOR ENERGY (NATURAL GAS) AMERICA INC Powder River (WY) TREND EXPLORATION I LLC Powder River (WY) Williams Production RMT Company Powder River (WY) WINDSOR GAS DRAW, LLC Powder River (WY) WINDSOR JEPSON, LLC Powder River (WY) XTO Energy Inc. Powder River (WY) Yates Petroleum Corporation Raton EL PASO E&P COMPANY, L.P. Raton PIONEER NATURAL RESOURCES USA, INC. Raton PRESCO Raton Red River Ranch Holdings, LLC Raton XTO Energy Inc. San Juan BENSON

- MONTIN

- GREER DRILLING CORP San Juan BP AMERICA PRODUCTION COMPANY San Juan CHEVRON U.S.A. San Juan Dugan Production Corp San Juan Gosney & Sons Inc. San Juan HOLCOMB OIL & GAS INC. San Juan Koch Exploration Company, LLC San Juan MANANA GAS, INC San Juan Merrion Oil & Gas Corp San Juan N M & O OPERATING CO San Juan RC RESOURCES CORP San Juan RICHARDSON OPERATING San Juan Robert L Bayless Producer, LLC San Juan ROCANVILLE CORP San Juan ROSETTA RESOURCES OPERATING LLCMem orandum

April 2, 2013 Page 22 

### Table **A**
**- 2**  **. List of Oper ators Receiving Detailed Questionnaires** 

**Basin Operator nam**  **e** San Juan XTO Energy Inc. San Juan XTO Energy Inc. Uinta

- Piceance Anadarko Petroleum Corporation Uinta

- Piceance CONOCO PHILLIPS COMPNAY Uinta

- Piceance Laramie Energy II, LLC Uinta

- Piceance MARALEX RESOURCES, INC. Uinta

- Piceance Marathon Oil Company Uinta

- Piceance MARION ENRGY, INC. Uinta

- Piceance NATIONAL FUEL CORPORATION Uinta

- Piceance PIONEER NATURAL RESOURCES USA, INC. Uinta

- Piceance SG INTERESTS I LTD Uinta

- Piceance WHITMAR EXPLORATION COMPANY Uinta

- Piceance Williams Production RMT Company Uinta

- Piceance XTO Energy Inc. Wind River Devon Energy Production Company, LP