Prepared in cooperation with the Bureau of Economic Geology, The University of Texas at Austin 

Thermal maturity of Pennsylvanian coals and coaly 


shales, Eastern Shelf and Fort Worth Basin, Texas
 

Open-File Report 2007-1312
 

U.S. Department of the Interior 

U.S. Geological Survey 
U.S. Department of the Interior 

Dirk A. Kempthorne, Secretary 

U.S. Geological Survey 

Mark D. Myers, Director 

U.S. Geological Survey, Reston, Virginia 2007 

For product and ordering information: 


World Wide Web: http://www.usgs.gov/pubprod
 

Telephone: 1-888-ASK-USGS 


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its natural and living resources, natural hazards, and the environment: 


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Telephone: 1-888-ASK-USGS 


Suggested citation: 


Hackley, P.C., Guevara, E. H., Hentz, T.F., and Hook, R.W., 2007, Thermal maturity of 


Pennsylvanian coals and coaly shales, Eastern Shelf and Fort Worth Basin, Texas: 


U.S. Geological Survey Open-File Report 2007-1312, 158 p., 

http://pubs.usgs.gov/of/2007/1312. 

Any use of trade, product, or firm names is for descriptive purposes only and does 

not imply endorsement by the U.S. Government. 

Although this report is in the public domain, permission must be secured from the 

individual copyright owners to reproduce any copyrighted material contained within 

this report. 

ii
Contents 

Introduction..........................................................................................................................................................1 


Methods...............................................................................................................................................................1 


Sample Collection............................................................................................................................................1 


Sample Preparation .........................................................................................................................................4 


Vitrinite Reflectance........................................................................................................................................4 


Proximate-ultimate and Rock-Eval analyses ...................................................................................................4 


Results .................................................................................................................................................................4 


Discussion............................................................................................................................................................9 


Conclusions........................................................................................................................................................10 


Acknowledgements ...........................................................................................................................................10 


References.........................................................................................................................................................10 


Table 1. Vitrinite reflectance of coal and coaly shale samples from north-central Texas................................11 


Table 2. Proximate-ultimate analytical data for coal and coaly shale samples from north-central Texas .......14 


Table 3. Rock-Eval and Leco TOC data for coals and coaly shales from north-central Texas...........................15 


APPENDIX 1 – U.S. Geological Survey Organic Petrology Laboratory Reports .................................................16 


APPENDIX 2 – Vitrinite reflectance data from Humble Geochemical Testing, Inc. ........................................157 


iii
 

 

 

 

Thermal maturity of Pennsylvanian coals and 

coaly shales, Eastern Shelf and Fort Worth 

Basin, Texas 

By Paul C. Hackley1, Edgar H. Guevara2, Tucker F. Hentz2, and Robert W. Hook3 

1

U.S. Geological Survey, MS 956 National Center, Reston, VA 20192 

2

Bureau of Economic Geology, The University of Texas at Austin, Austin, TX 78713 

3

Consultant, 1301 Constant Springs Drive, Austin, TX 78746 

Introduction 

The U.S. Geological Survey (USGS) and the 

Texas Bureau of Economic Geology (TBEG) are 

engaged in an ongoing collaborative study to 

characterize the organic composition and thermal 

maturity of Upper Paleozoic coal-bearing strata from 

the Eastern Shelf of the Midland basin and from the 

Fort Worth basin, north-central Texas (fig. 1). Data 

derived from this study will have application to a better 

understanding of the potential for coalbed gas 

resources in the region. This is an important effort in 

that unconventional resources such as coalbed methane 

(CBM) are expected to satisfy an increasingly greater 

component of United States and world natural gas 

demand in coming decades (Energy Business Reports, 

2007). In addition, successful CBM production from 

equivalent strata in the Kerr basin of southern Texas 

(fig. 1), and from equivalent strata elsewhere in the 

United States (e.g., Cherokee, Arkoma, Warrior, and 

Appalachian basins) suggests that a closer examination 

of CBM potential in north-central Texas is warranted 

(Barker and others, 2003). 

This report presents the results of efforts to date 

which mainly have focused on determining the thermal 

maturity of shallow (<2,000 ft; <610 m) coal and coaly 

shale cuttings from the Middle-Upper Pennsylvanian 

Strawn, Canyon, and Cisco Groups (fig. 2) from the 

Eastern Shelf of the Midland basin. Samples from ten 

conventional wells in Archer and Young Counties 

(northwest and downdip from the outcrop) yield mean 

random vitrinite reflectance (Ro) measurements 

between about 0.4 and 0.8 percent, indicating coal rank 

from subbituminous C to high volatile A bituminous. 

Core samples of Lower Pennsylvanian strata (lower 

Atoka Group) from two deeper wells (samples from 

~5,400 ft; 1,645 m) in eastern Jack and western Wise 

Counties in the western part of the Fort Worth basin yield 

higher thermal maturities. In addition to the maturation 

data for these subsurface samples, Ro data from 

approximately twenty shallow coal core and outcrop 

samples are presented herein. Original Ro data are 

contained in Appendices 1-2 of this report. Selected 

samples also were investigated by geochemical methods, 

including Rock-Eval pyrolysis and proximate-ultimate 

analyses. Data from the current study indicate that the 

maturity of some Pennsylvanian coal and coaly shale 

samples is sufficient to support thermogenic coalbed gas 

generation on the Eastern Shelf and in the western Fort 

Worth basin. 

Methods 

Sample Collection 

Wells in Young and Archer Counties that have coal 

and coaly shale drilling cuttings available were identified 

based on open-file data at the TBEG, including strip logs, 

narrative descriptions of well cuttings samples, and 

annotated spontaneous potential and resistivity electric logs 

(Guevara and others, 2007). Annotated logs allowed 

determination of the general stratigraphic position of the 

collected samples. Cuttings were handpicked for organicrich facies. Subsurface core and shallow core samples from 

coal mines were collected from the Texas Natural Science 

Center in Austin, the Austin Core Research Center of the 

TBEG, and from the Little Bull Creek coal mine, Coleman 

County, near the town of Waldrip. Outcrop samples of 

Cisco Group coal beds were collected according to 

American Society for Testing and Materials (ASTM) D 

4596: Practice for collection of channel samples in a mine 

(ASTM, 2007). Outcrop locations in Jack, Young, 

Stephens, and Eastland Counties were determined from the 

field notes of Robert W. Hook based on previous studies 

1
Figure 1. Study area showing sample locations, outcrop trend of coal-bearing Pennsylvanian strata, and isoreflectance contours (in percent) for maturation of the 

Mississippian Barnett Shale. Modified from Brown and others (1973), Montgomery and others (2005), and Guevara and others (2007). Reflectance data from Humble 

Geochemical Services, Inc. (cited in Pollastro and others, 2007). Refer to Figure 2 for stratigraphic nomenclature. Grp. = Group, Fm. = Formation. 

2
Figure 2. Stratigraphic column showing the Paleozoic section (expanded in Upper Pennsylvanian and Lower Permian) for north-central Texas and approximate position 

of named coal beds. From Brown and others (1972, 1973), and Montgomery and others (2005). Fms. = Formations. 

3
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Hook, 1989), and from consultation of the reports by 

Plummer and others (1949) and Evans (1974). 

Samples TX-7 through TX-10 were collected as 

multiple benches of a channel sample through a 2.4 ft 

(0.73 m) thick coal bed south of Loving, Young 

County (fig. 1); other coal bed outcrops were collected 

as single-bench channels. 

Sample Preparation 

Samples were prepared for analysis according to 

ASTM D 2797: Preparing coal samples for 

microscopical analysis by reflected light (ASTM, 

2007). Cuttings samples were mounted as-sampled; 

core and outcrop samples were ground to pass a 850­

μm (No. 20 mesh) or 1000-μm (No. 16 mesh) sieve in 

most cases. Samples were mounted for reflectance 

analysis in a 1-inch mold using a heat-setting 

thermoplastic powder or epoxy resin medium. Two 

mounts were made for outcrop samples; a single mount 

was prepared for cuttings and core samples. 

Examination surfaces were ground and polished, then 

desiccated overnight prior to analysis. 

Vitrinite Reflectance 

Vitrinite reflectance analyses were conducted 

according to ASTM D 2798: Microscopical 

determination of the vitrinite reflectance of coal 

(ASTM, 2007), using a Leitz* Orthoplan microscope 

equipped with a MPV-2 photomultiplier-based light 

measuring system, or a Leica DMRX microscope 

equipped with a J&M MSP200 photomultiplier system 

(see webpage 

http://energy.er.usgs.gov/coal_studies/organic_petrolo

gy/laboratory.html for photographs and information 

about microscope systems). One hundred 

measurements of the random reflectance (Ro) of 

individual vitrinite grains in the outcrop samples were 

performed; fifty measurements were made on each 

mount. For the cuttings samples, insufficient sample 

volume did not permit 100 measurements as 

proscribed by ASTM (2007). The number of 

determinations for cuttings was dependent on sample 

volume, ranging from 1-65 measurements. 

A subset of ten cuttings samples from Young 

County were submitted to Humble Geochemical 

Testing, Inc. for preliminary Ro analysis, primarily to 

determine the range of reflectance values present at 

depths of 0-2,000 ft (0-610 m) (Guevara and others, 

2007). Original data from these samples are contained 

in Guevara and others (2007), and are summarized in 

Appendix 2 of this report. Samples analyzed by 

Humble were in several cases confirmed by reanalysis at 

USGS (see sample reports in Appendix 1). 

Proximate-ultimate and Rock-Eval analyses 

Depending on degree of weathering, selected outcrop 

samples were analyzed for proximate, ultimate, calorific 

values, and free swelling indices at Geochemical Testing, 

Inc., according to ASTM methods and procedures (ASTM, 

2007). Depending on the availability of sufficient sample 

volume, selected outcrop, cuttings, and core samples also 

were analyzed by Rock-Eval pyrolysis at Humble 

Geochemical Testing, Inc., according to the methods 

described in Barker (1974) and Espitalié and others (1977). 

Results 

Thermal maturity as determined by the mean random 

reflectance of vitrinite (Ro) ranges from 0.4-1.0 % for all 

samples reported herein. This is consistent with published 

isoreflectance contour intervals for the underlying 

Mississippian Barnett Shale (data from Humble 

Geochemical Testing, Inc.; cited in Pollastro and others, 

2007). The Barnett occurs at depths of several hundred to 

several thousand feet below the samples collected for this 

study, depending on location (compare sample locations in 

fig. 1, this study, with structural top of Barnett, fig. 15 of 

Pollastro and others, 2007). Ro values are compiled in 

Table 1 and the original data for each sample are contained 

in Appendix 1 of this report. Samples analyzed by Humble 

Geochemical Testing, Inc., are indicated with an asterisk in 

Table 1. 

Cuttings samples generally exhibit a modest 

correlation between sample depth and reflectance (figs. 3­

10) for the wells with enough data to construct a 

meaningful regression (linear correlation coefficients in 

figs. 3-10 computed in spreadsheet software using all data 

points for each well). Poor correlation coefficients in the 

Furr No. 1 (fig. 5) and Schreiber No. 1 (fig. 9) wells may 

indicate possible contamination from cavings, oxidation, or 

inclusion of recycled vitrinite. Cuttings Ro values range 

0.4-0.8 %, indicating coal rank from subbituminous C to 

high volatile A bituminous. A high value of 1.01 % at 

3,570-3,580 ft (1,088-1,091 m) in the Peyson No. 1 well 

(fig. 10) is considered suspect due to proximity to highreflecting pyrite mineralization. This range of thermal 

maturity (0.4-0.8 %) is sufficient for the early stages of 

thermogenic coalbed gas generation in the higher maturity 

samples (e.g., Michael and others, 1993). However, few 

cuttings show indications of well-established, thick coal 

beds in the subsurface, i.e., most rock fragments are 

carbominerite (fig. 11A). There are some exceptions to this 

case, as noted in the brief descriptive comments associated 

with each sample in Appendix 1. Organic material in all of 

the cuttings is dominated by vitrinite (fig. 11B), indicating 

that generated hydrocarbons should be gas-prone. 

*Any use of trade, product, or firm names is for descriptive purposes only and does not imply 

endorsement by the U.S. Geological Survey. 

4
Figure 3. Vitrinite reflectance versus depth for cuttings samples from the 

Baldwin No. 1 well, Young County. Refer to Appendices for actual data. 

Well location is shown on Figure 1 and in Table 1. 

Figure 4. Vitrinite reflectance versus depth for cuttings samples from the 

Morrison No. 1 well, Young County. Refer to Appendices for actual data. 

Well location is shown on Figure 1 and in Table 1. 

Figure 5. Vitrinite reflectance versus depth for cuttings samples from the Furr No. 1 

well, Young County. Refer to Appendices for actual data. Well location is shown 

on Figure 1 and in Table 1. 

Figure 6. Vitrinite reflectance versus depth for cuttings samples from the Donnell 

No. 1 well, Young County. Refer to Appendices for actual data. Well location is 

shown on Figure 1 and in Table 1. 

5
Figure 7. Vitrinite reflectance versus depth for cuttings samples from the 

Scott No. 1 well, Archer County. Refer to Appendices for actual data. Well 

location is shown on Figure 1 and in Table 1. 

Figure 8. Vitrinite reflectance versus depth for cuttings samples from the 

Coleman No. 1 well, Archer County. Refer to Appendices for actual data. 

Well location is shown on Figure 1 and in Table 1. 

Figure 9. Vitrinite reflectance versus depth for cuttings samples from the Schreiber 

No. 1 well, Archer County. Refer to Appendices for actual data. Well location is 

shown on Figure 1 and in Table 1. 

Figure 10. Vitrinite reflectance versus depth for cuttings samples from the Peyson 

No. 1 well, Archer County. Refer to Appendices for actual data. Well location is 

shown on Figure 1 and in Table 1. 

6
Figure 11. A. Typical carbominerite cuttings fragment. Peyson No. 1 680-690 ft, Cisco Group, Archer County. B. Rare telinite fragment; high number of similar 

fragments in sample interpreted to indicate well-developed coal bed present. Morrison No. 1 310-320 ft, Cisco Group, Young County. See Figure 1 and Table 1 for 

sample locations. 

Ro values for coal core samples also are consistent 

with maturity levels suitable for early thermogenic gas 

generation. Samples were collected from nowabandoned coal mines in close proximity to the 

outcrop belt (Coleman to Montague Counties, updip 

from cuttings samples previously described; fig. 1). 

These samples have petrographic properties consistent 

with the thicker (though still <3 ft thick; <1 m), cleaner 

character of coal beds known near the outcrop belt, 

containing well-developed monomaceral-trimaceral 

microlithotypes with few mineral inclusions (fig. 12AB). Four samples from Cisco Group coals yield Ro 

values of 0.52-0.83 % (Table 1); a Strawn Group coal 

core sample (Thurber coal) has a Ro value of 0.66 %. 

Lower Atoka Group (fig. 2) core from Jack and 

Wise Counties contains thin (<2 ft; <0.60 m) coaly 

shale layers (fig. 13A-B) which yield Ro values of 

about 1.0 % (Table 1). These samples are significantly 

deeper (collected from 5,400-5,540 ft; 1,645-1,690 m) 

than the cuttings samples from Archer and Young 

Counties, most of which are from <2,000 ft (<610 m). 

The maturity data for the lower Atoka Group samples 

are consistent with an area of indigenous wet gas 

production from the underlying continuous Barnett 

Shale reservoir. 

Outcrop channel samples of Cisco Group coals 

(fig. 14A-C) also yield Ro values from 0.5 to 0.8 % 

(table 1). Proximate-ultimate analyses (table 2) 

indicate alteration due to surface weathering (Fig. 

14D), including lower than expected calorific values 

(6,300-8,700 Btu/lb on a moist, mineral-matter-free 

basis). These calorific values indicate ASTM rank of 

lignite-subbituminous C, inconsistent with the 

subbituminous A-high volatile bituminous A rank 

determined by the reflectance of vitrinite. 

Corroborating the results of calorific value analyses, 

free swelling indices of 0.0 (table 2) also indicate 

Figure 12. A. Well-developed trimaceral coal facies; Harpersville Formation coal, 

Cisco Group. Coal core from Little Bull Creek mine, Coleman County. Sample 

Identification in Table 1: C. Bryan No. 8, Sample 5. B. Well-developed trimaceral 

coal facies; Thurber Coal, Mingus Formation, Strawn Group. Coal core from the 

Johnson mine, Erath County. Sample Identification in Table 1: TBEG 384. See 

Figure 1 and Table 1 for sample locations. 

7
Figure 13. A. Vitrinite bands in coaly shale, lower Atoka Group. EP Tarrant WB-3 5,400 ft, Wise County. B. Ornamented megaspore, lower Atoka Group. Oxy Tarrant 

A-4 5,540 ft, Jack County. See Figure 1 and Table 1 for sample locations. 

Figure 14. A. Cisco Group coal south of Loving, Young County, 2.4 ft (0.73 m) thick; samples TX-7 to TX-10. Shovel handle is 2.2 ft (0.67 m) long. Divisions across coal 

bed show multiple benches of channel sample and sample identification. B. Newcastle Coal (Cisco Group) west of Breckenridge, Stephens County, 0.8 ft (0.24 m) 

thick, sample TX-12. Scale is 0.5 ft (0.15 m) long. Sample collected as single bench channel. C. Cisco Group coal, Henderson Ranch, Jack County, 0.65 ft (0.20 m) 

thick. Hammer handle is 0.8 ft (0.24 m) long. Sample collected as single bench channel TX-3; samples TX-1 and TX-2 were collected as single bench channel 

samples across same coal bed at nearby outcrops. D. Vitrinite with desiccation cracks and secondary surface mineralization; Cisco Group coal, sample TX-6, Young 

County. See Figure 1 and Table 1 for all sample locations. 

8
 

 

 

 

Figure 17. Hydrogen Index vs. Oxygen Index (S3*100/TOC) for selected cuttings, 

core, and outcrop samples. 

surface oxidation and consequent plasticity loss. 

Sampled coal beds range 0.3 to 2.4 ft (0.10-0.75 m ) in 

thickness and contain high mineral matter content (7­

27 vol.% whole coal; determined by quantitative point 

count). 

A select number of samples were analyzed by 

Rock-Eval pyrolysis and for total organic carbon 

(TOC) (table 3). Tmax values correlate well with 

measured Ro (fig. 15) and confirm that analyzed 

samples are in the oil window (approximately 0.6-1.2 

% Ro). Gas-prone Cisco Group coal and coaly shales 

plot on Type III organic matter maturation pathways 

(fig. 16). Surface weathering of Cisco coal outcrop 

samples may be evidenced in high oxygen index (OI) 

values (fig. 17). Samples contain 28-67 wt.% TOC; 

lower Atoka Group samples contain the highest 

pyrolysis yields and could be considered good 

potential source rocks (fig. 18). 

Figure 15. Tmax (°C) vs. measured Ro

 (%) for selected cuttings, core, and 

outcrop samples. 

Figure 16. Hydrogen Index (S2*100/TOC) vs. Tmax (°C) for selected cuttings, 

core, and outcrop samples. 

Figure 18. Remaining hydrocarbon potential (S2; mg hydrocarbon per gram of rock) 

vs. TOC (wt.%). 

Discussion 

Successful production of coalbed methane from the 

Pennsylvanian-Permian strata of the Kerr Basin in south 

Texas has warranted a closer examination of equivalent 

strata in the tectonically-related basins of other parts of 

Texas (Barker and others, 2003), including the northcentral Texas Fort Worth basin and the Eastern Shelf of the 

Midland basin examined herein (fig. 1). Pennsylvanian 

coals of the Eastern Shelf and of the Fort Worth basin are 

of appropriate rank to support thermogenic coalbed gas 

generation. However, coals are thin (<1-3 ft; <0.3-1.0 m), 

high in ash yield (generally >15 wt.%, dry basis), and 

laterally discontinuous (Evans, 1974), whereas successful 

production in the Kerr basin is from a laterally extensive 25 

ft (7.6 m) thick coal zone with over 14 ft (4.3 m) of net coal 

(Barker and others, 2003). Moreover, facies become more 

marine to the northwest (downdip) from the outcrop belt in 

north-central Texas according to descriptions of 

9
lithostratigraphy and depositional environments 

derived from log-based facies studies (Galloway and 

Brown, 1972; Brown and others, 1973). However, 

despite the modest thickness and relatively poor 

quality (high ash yield) of coal beds in the study area, 

economic coalbed gas potential may be present as 

evidenced by the successful development of similarly 

thin, poor-quality coal beds in the Cherokee basin of 

Oklahoma and Kansas (Tedesco, 2007). 

Based on the currently available data, the best 

avenue for future investigation of coalbed methane 

potential on the Eastern Shelf may be to focus on 

examination of the Thurber Coal (Strawn Group) in the 

areas of historical coal mining (1890s-1920s) in 

southern Palo Pinto and northern Erath Counties. 

Mining records indicate lateral persistence of the 3 ft 

(1 m) thick bed (Evans, 1974) and log-based studies 

indicate the subsurface presence of the Thurber coal 

across eight or more counties in north-central Texas 

(Mapel, 1967; Brown and others, 1973). Planned 

future USGS-TBEG collaboration will include a focus 

on the characterization of Strawn coal cuttings from 

coal company wells. 

Conclusions 

Ongoing thermal maturation studies conducted 

jointly by the TBEG and the USGS on the 

Pennsylvanian strata of north-central Texas have 

included to-date analysis of approximately 120 

samples for reflectance of vitrinite. Ro data range from 

0.4-1.0 %, indicating coal rank from subbituminous C 

to high volatile A bituminous, consistent with the 

potential for early thermogenic gas generation in 

higher maturity samples. 

Acknowledgements 

Susan Tewalt and Peter Warwick of USGS helped 

with project coordination. Christopher Burr and 

Martina Hopkins of USGS helped with sample 

preparation. Reviews by Peter Warwick and MaryAnn 

Malinconico of USGS improved the quality and clarity 

of this report. Samples from the C. Bryan No. 8 core 

of the Little Bull Creek coal mine were donated by 

Susan Tewalt. 

References 

ASTM, 2007, Annual book of ASTM standards: Petroleum products, 

lubricants, and fossil fuels; Gaseous fuels; coal and coke, sec. 

5, v. 5.06: ASTM International, West Conshohocken, PA, 711 

p. 

Barker, C., 1974, Pyrolysis techniques for source rock evaluation: 

American Association of Petroleum Geologists Bulletin, v. 58, 

p. 2349-2361. 

Barker, C.E., Heck, W., and Eble, C., 2003, Coalbed methane in Late 

Pennsylvanian to Early Permian coal, Kerr basin, Edwards County, 

Texas: Gulf Coast Association of Geological Societies Transactions, 

v. 53, p. 38-50. 

Brown, L.F., Jr., Cleaves, A.W., II, and Erxleben, A.W., 1973, 

Pennsylvanian depositional systems in north-central Texas – a 

guide for interpreting terrigenous clastic facies in a cratonic basin: 

The University of Texas at Austin, Bureau of Economic Geology 

Guidebook 14, 122 p. 

Brown, L.F., Jr., Goodson, J.L., and Harwood, P., 1972, Abilene sheet, in 

Barnes, V.E., project director, Geologic Atlas of Texas: Bureau of 

Economic Geology, scale 1:250,000. 

Energy Business Reports, 2007, Unconventional gas outlook: Resources, 

economics, and technologies, 2007: Energy Business Reports, 129 

p. 

Espitalié, J., Laporte, J.L., Madec, M., Marquis, F., Leplat, P., and Paulet, 

J., 1977, Méthode rapide de caractérisation des rochès, de leur 

potential pétrolier et de leur degree d’évolution: Revue de L’Institut 

Français du Pétrole, v. 32, p. 23-43. 

Evans, T.J., 1974, Bituminous coal in Texas: Bureau of Economic Geology 

Handbook 4, 65 p. 

Galloway, W.E., and Brown, L.F., Jr., 1972, Depositional systems and 

shelf-slope relationships in Upper Pennsylvanian rocks, NorthCentral Texas: University of Texas at Austin, Bureau of Economic 

Geology Report of Investigations 75, 62 p. 

Guevara, E.H., Breton, C., and Hackley, P.C., 2007, Coal rank and 

stratigraphy of Pennsylvanian coal and coaly shale samples, Young 

County, north-central Texas: U.S. Geological Survey Open-File 

Report 2007-1313, 28 p., http://pubs.usgs.gov/of/2007/1313. 

Hook, R.W., 1989. Stratigraphic distribution of tetrapods in the Bowie 

and Wichita Groups, Permo-Carboniferous of north-central Texas, in 

Hook, R.W., (ed.), Permo-Carboniferous vertebrate paleontology, 

lithostratigraphy, and depositional environments of north-central 

Texas: Society of Vertebrate Paleontology, 49th Annual Meeting, 

Austin, Texas, Field Trip Guidebook 2, p. 47-53. 

Mapel, W.J., 1967, Bituminous coal resources of Texas: U.S. Geological 

Survey Bulletin 1242-D, 28 p. 

Michael, G.E., Anders, D.E., and Law, B.E., 1993, Geochemical evaluation 

of Upper Cretaceous Fruitland Formation coals, San Juan Basin, 

New Mexico and Colorado: Organic Geochemistry, v. 20, p. 475­

498. 

Montgomery, S.L., Jarvie, D.M., Bowker, K.A., and Pollastro, R.M., 2005, 

Mississippian Barnett Shale, Fort Worth basin, north-central Texas: 

Gas-shale play with multi-trillion cubic foot potential: American 

Association of Petroleum Geologists Bulletin, v. 89, no. 2, p. 155­

175. 

Plummer, F.B., Bradley, H.B., and Pence, F.K., 1949, Clay deposits of the 

Cisco Group of North-Central Texas: University of Texas Publication 

4915, 44 p. 

Pollastro, R.M., Jarvie, D.M., Hill, R.J., and Adams, C.W., 2007, Geologic 

framework of the Mississippian Barnett Shale, Barnett-Paleozoic 

total petroleum system, Bend Arch-Fort Worth Basin, Texas: 

American Association of Petroleum Geologists Bulletin, v. 91, no. 4, 

p. 405-436. 

Tedesco, S.A., 2007, Coalbed methane and shale gas (Pennsylvanian) 

activity in the Cherokee basin, Oklahoma and Kansas, USA: 

Unconventional Petroleum Systems and Advances in Organic 

Petrology and Geochemistry, Proceedings of the 2007 Joint CSCOPTSOP-ICCP Annual Meeting, p. 45-46. 

10
Table 1. Vitrinite reflectance of coal and coaly shale samples from north-central Texas. See Figure 1 for sample locations. See bottom of table for explanation of table abbreviations. 

Sample ID (depth in ft) County Group Ro s.d. n Sample Type Latitude Longitude 

Baldwin No. 1 280-290' Young Cisco 0.51 0.05 11 cuttings 32.96937 -98.74462 

*Baldwin No. 1 560-570' Young Canyon 0.61 0.06 27 cuttings 32.96937 -98.74462 

Baldwin No. 1 800-810' Young Canyon 0.62 0.05 30 cuttings 32.96937 -98.74462 

Baldwin No. 1 810-820' Young Canyon 0.55 0.05 25 cuttings 32.96937 -98.74462 

Baldwin No. 1 980-990' Young Canyon 0.70 0.01 4 cuttings 32.96937 -98.74462 

*Baldwin No. 1 1460-1470' Young Strawn 0.63 0.05 19 cuttings 32.96937 -98.74462 

Baldwin No. 1 2750-2760' Young Strawn 0.64 0.07 5 cuttings 32.96937 -98.74462 

Baldwin No. 1 2760-2770' Young Strawn 0.72 0.03 3 cuttings 32.96937 -98.74462 

Baldwin No. 1 2770-2780' Young Strawn 0.71 0.04 8 cuttings 32.96937 -98.74462 

Morrison No.1 240-250' Young Cisco 0.55 0.03 50 cuttings 33.34827 -98.55591 

*Morrison No.1 310-320' Young Cisco 0.48 0.06 65 cuttings 33.34827 -98.55591 

*Morrison No.1 1350-1360' Young Canyon 0.52 0.05 10 cuttings 33.34827 -98.55591 

Morrison No.1 1650-1660' Young Canyon 0.73 0.08 10 cuttings 33.34827 -98.55591 

Morrison No.1 1730-1740' Young Canyon 0.81 0.03 10 cuttings 33.34827 -98.55591 

*Morrison No.1 2030-2040' Young Canyon 0.84 0.0 1 cuttings 33.34827 -98.55591 

Furr No. 1 100-110' Young Cisco 0.62 0.0 1 cuttings 33.26032 -98.87524 

Furr No. 1 110-120' Young Cisco 0.55 0.07 8 cuttings 33.26032 -98.87524 

Furr No. 1 380-390' Young Cisco n.v. - - cuttings 33.26032 -98.87524 

Furr No. 1 440-450' Young Cisco 0.55 0.07 22 cuttings 33.26032 -98.87524 

Furr No. 1 530-540' Young Cisco 0.58 0.08 25 cuttings 33.26032 -98.87524 

Furr No. 1 540-550' Young Cisco 0.61 0.04 15 cuttings 33.26032 -98.87524 

Furr No. 1 610-620' Young Cisco 0.56 0.04 35 cuttings 33.26032 -98.87524 

Furr No. 1 730-740' Young Cisco 0.53 0.06 4 cuttings 33.26032 -98.87524 

Furr No. 1 770-780' Young Cisco 0.49 0.04 9 cuttings 33.26032 -98.87524 

*Furr No. 1 820-830' Young Cisco n.v. - - cuttings 33.26032 -98.87524 

Furr No. 1 1650-1660' Young Canyon 0.49 0.05 30 cuttings 33.26032 -98.87524 

Furr No. 1 1950-1960' Young Canyon 0.51 0.04 10 cuttings 33.26032 -98.87524 

*Furr No. 1 2160-2170' Young Canyon 0.55 0.04 26 cuttings 33.26032 -98.87524 

*Thompson No. 1 780-790' Young Canyon 0.52 0.06 27 cuttings 33.12688 -98.53619 

Thompson No. 1 820-830' Young Canyon 0.86 0.0 2 cuttings 33.12688 -98.53619 

Thompson No. 1 980-990' Young Canyon 0.75 0.02 2 cuttings 33.12688 -98.53619 

Donnell No. 1 30-40' Young Cisco n.v. - - cuttings 33.10896 -98.93902 

Donnell No. 1 310-320' Young Cisco 0.63 0.05 30 cuttings 33.10896 -98.93902 

Donnell No. 1 320-330' Young Cisco 0.63 0.04 25 cuttings 33.10896 -98.93902 

Donnell No. 1 330-340' Young Cisco 0.61 0.05 40 cuttings 33.10896 -98.93902 

Donnell No. 1 380-390' Young Cisco 0.61 0.04 30 cuttings 33.10896 -98.93902 

*Donnell No. 1 390-400' Young Cisco n.v. - - cuttings 33.10896 -98.93902 

Donnell No. 1 410-420' Young Cisco 0.62 0.06 28 cuttings 33.10896 -98.93902 

Donnell No. 1 420-430' Young Cisco 0.58 0.07 15 cuttings 33.10896 -98.93902 

Donnell No. 1 440-450' Young Cisco 0.62 0.07 50 cuttings 33.10896 -98.93902 

Donnell No. 1 450-460' Young Cisco 0.77 0.05 50 cuttings 33.10896 -98.93902 

Donnell No. 1 480-490' Young Cisco 0.60 0.06 13 cuttings 33.10896 -98.93902 

Donnell No. 1 790-800' Young Cisco 0.70 0.05 5 cuttings 33.10896 -98.93902 

Donnell No. 1 800-810' Young Cisco 0.69 0.05 6 cuttings 33.10896 -98.93902 

Donnell No. 1 810-820' Young Cisco 0.70 0.05 4 cuttings 33.10896 -98.93902 

Donnell No. 1 1130-1140' Young Cisco 0.70 0.04 20 cuttings 33.10896 -98.93902 

Donnell No. 1 1240-1250' Young Cisco n.v. - - cuttings 33.10896 -98.93902 

Donnell No. 1 1250-1260' Young Cisco 0.66 0.07 12 cuttings 33.10896 -98.93902 

Donnell No. 1 1340-1350' Young Canyon n.v. - - cuttings 33.10896 -98.93902 

Donnell No. 1 1620-1630' Young Canyon 0.78 0.06 3 cuttings 33.10896 -98.93902 

*Donnell No. 1 1630-1640' Young Canyon 0.53 0.08 10 cuttings 33.10896 -98.93902 

Donnell No. 1 1750-1760' Young Canyon 0.78 0.06 16 cuttings 33.10896 -98.93902 

Donnell No. 1 1930-1940' Young Canyon 0.88 0.06 20 cuttings 33.10896 -98.93902 

Donnell No. 1 1940-1950' Young Canyon 0.83 0.05 2 cuttings 33.10896 -98.93902 

11
Table 1 continued. 

Sample ID (depth in ft) County Group Ro s.d. n Sample Type Latitude Longitude 

Donnell No. 1 2180-2190' Young Strawn 0.71 0.12 15 cuttings 33.10896 -98.93902 

Donnell No. 1 2350-2360' Young Strawn 0.86 0.06 30 cuttings 33.10896 -98.93902 

Donnell No. 1 2360-2370' Young Strawn 0.79 0.0 1 cuttings 33.10896 -98.93902 

Rasmussen No. 1 940-950' Archer Cisco 0.67 0.0 1 cuttings 33.72129 -98.82598 

Rasmussen No. 1 1210-1220' Archer Cisco n.v. -- cuttings 33.72129 -98.82598 

Rasmussen No. 1 1290-1300' Archer Cisco n.v. -- cuttings 33.72129 -98.82598 

Rasmussen No. 1 1500-1510' Archer Cisco 0.58 0.0 2 cuttings 33.72129 -98.82598 

Rasmussen No. 1 1700-1710' Archer Cisco 0.52 0.0 1 cuttings 33.72129 -98.82598 

Scott No. 1 610-620' Archer Cisco 0.48 0.08 50 cuttings 33.45155 -98.77245 

Scott No. 1 630-640' Archer Cisco 0.46 0.09 30 cuttings 33.45155 -98.77245 

Scott No. 1 690-700' Archer Cisco n.v. -- cuttings 33.45155 -98.77245 

Scott No. 1 780-790' Archer Cisco 0.45 0.0 1 cuttings 33.45155 -98.77245 

Scott No. 1 790-800' Archer Cisco 0.54 0.04 50 cuttings 33.45155 -98.77245 

Scott No. 1 810-820' Archer Cisco 0.57 0.06 50 cuttings 33.45155 -98.77245 

Scott No. 1 850-860' Archer Cisco n.a. 

-- cuttings 33.45155 -98.77245 

Scott No. 1 1610-1620' Archer Cisco 0.59 0.07 50 cuttings 33.45155 -98.77245 

Scott No. 1 1850-1860' Archer Canyon 0.60 0.06 41 cuttings 33.45155 -98.77245 

Scott No. 1 1870-1880' Archer Canyon 0.59 0.06 12 cuttings 33.45155 -98.77245 

Coleman No. 1 580-590' Archer Cisco 0.39 0.05 22 cuttings 33.73802 -98.49150 

Coleman No. 1 600-610' Archer Cisco 0.36 0.06 23 cuttings 33.73802 -98.49150 

Coleman No. 1 830-840' Archer Cisco 0.51 0.10 40 cuttings 33.73802 -98.49150 

Coleman No. 1 910-920' Archer Cisco 0.54 0.10 28 cuttings 33.73802 -98.49150 

Coleman No. 1 1010-1020' Archer Cisco n.v. -- cuttings 33.73802 -98.49150 

Coleman No. 1 1040-1050' Archer Cisco n.v. -- cuttings 33.73802 -98.49150 

Coleman No. 1 1050-1060' Archer Cisco n.v. -- cuttings 33.73802 -98.49150 

Coleman No. 1 1090-1100' Archer Cisco 0.46 0 1 cuttings 33.73802 -98.49150 

Coleman No. 1 1150-1160' Archer Cisco n.v. -- cuttings 33.73802 -98.49150 

Coleman No. 1 1280-1290' Archer Cisco n.v. -- cuttings 33.73802 -98.49150 

Coleman No. 1 1390-1400' Archer Cisco 0.46 0.06 40 cuttings 33.73802 -98.49150 

Coleman No. 1 1500-1510' Archer Cisco n.v. -- cuttings 33.73802 -98.49150 

Coleman No. 1 1590-1600' Archer Cisco 0.56 0.04 12 cuttings 33.73802 -98.49150 

Coleman No. 1 1600-1610' Archer Cisco 0.61 0.08 23 cuttings 33.73802 -98.49150 

Coleman No. 1 1630-1640' Archer Cisco 0.54 0.07 50 cuttings 33.73802 -98.49150 

Coleman No. 1 1710-1720' Archer Cisco 0.53 0.07 34 cuttings 33.73802 -98.49150 

Coleman No. 1 1780-1790' Archer Cisco 0.61 0.05 17 cuttings 33.73802 -98.49150 

Coleman No. 1 1810-1820' Archer Cisco 0.64 0.07 21 cuttings 33.73802 -98.49150 

Coleman No. 1 1840-1850' Archer Cisco 0.60 0.11 35 cuttings 33.73802 -98.49150 

Schrieber No.1 580-590' Archer Cisco 0.46 0.05 50 cuttings 33.53796 -98.44995 

Schrieber No.1 630-640' Archer Cisco 0.42 0.09 60 cuttings 33.53796 -98.44995 

Schrieber No.1 870-880' Archer Cisco 0.42 0.09 13 cuttings 33.53796 -98.44995 

Schrieber No.1 930-940' Archer Cisco 0.45 0.08 12 cuttings 33.53796 -98.44995 

Schrieber No.1 1070-1080' Archer Cisco n.v. -- cuttings 33.53796 -98.44995 

Schrieber No.1 1110-1120' Archer Cisco 0.50 0.06 17 cuttings 33.53796 -98.44995 

Schrieber No.1 1440-1450' Archer Cisco 0.48 0.05 41 cuttings 33.53796 -98.44995 

Schrieber No.1 1490-1500' Archer Cisco 0.42 0.08 50 cuttings 33.53796 -98.44995 

Schrieber No.1 1540-1550' Archer Cisco 0.44 0.08 38 cuttings 33.53796 -98.44995 

Schrieber No.1 1710-1720' Archer Canyon 0.53 0.06 36 cuttings 33.53796 -98.44995 

Schrieber No.1 1770-1780' Archer Canyon 0.53 0.08 11 cuttings 33.53796 -98.44995 

Schrieber No.1 1780-1790' Archer Canyon 0.56 0.08 20 cuttings 33.53796 -98.44995 

Peyson No. 1 680-690' Archer Cisco 0.49 0.07 50 cuttings 33.55365 -98.49251 

Peyson No. 1 870-880' Archer Cisco n.v. -- cuttings 33.55365 -98.49251 

Peyson No. 1 900-910' Archer Cisco 0.49 0.05 29 cuttings 33.55365 -98.49251 

Peyson No. 1 1170-1180' Archer Cisco 0.67 0.13 7 cuttings 33.55365 -98.49251 

12
Table 1 continued. 

Sample ID (depth in ft) County Group Ro s.d. n Sample Type Latitude Longitude 

Peyson No. 1 1180-1190' 

Peyson No. 1 1390-1400' 

Peyson No. 1 1420-1430' 

Peyson No. 1 1580-1590' 

Peyson No. 1 1760-1770' 

Peyson No. 1 3570-3580' 

Peyson No. 1 3850-3860' 

Oxy Tarrant No. A-4 5541.0' 

Oxy Tarrant No. A-4 5541.3' 

Oxy Tarrant No. A-4 5541.7' 

EP Operating Tarrant No. WB-3 5402.0' 

EP Operating Tarrant No. WB-3 5402.3' 

EP Opertaing Tarrant No. WB-3 5403.8' 

EP Operating Tarrant No. WB-3 5404.2' 

TBEG 396 (depth unknown) 

TBEG 393 (depth unknown) 

TBEG 384 (depth unknown) 

C. Byan No. 8, Sample 5 (depth unknown) 

C. Byan No. 8, Sample 4A (depth unknown) 

TX-1 

TX-2 

TX-3 

TX-4 

TX-5 

TX-6 

TX-7 

TX-8 

TX-9 

TX-10 

TX-11 

TX-12 

TX-13 

Archer 

Archer 

Archer 

Archer 

Archer 

Archer 

Archer 

Jack 

Jack 

Jack 

Wise 

Wise 

Wise 

Wise 

Stephens 

Montague 

Erath 

Coleman 

Coleman 

Jack 

Jack 

Jack 

Jack 

Young 

Young 

Young 

Young 

Young 

Young 

Young 

Stephens 

Eastland 

Cisco 

Cisco 

Cisco 

Cisco 

Canyon 

Strawn 

Strawn 

lower Atoka 

lower Atoka 

lower Atoka 

lower Atoka 

lower Atoka 

lower Atoka 

lower Atoka 

Cisco 

Cisco 

Strawn 

Cisco 

Cisco 

Cisco 

Cisco 

Cisco 

Cisco 

Cisco 

Cisco 

Cisco 

Cisco 

Cisco 

Cisco 

Cisco 

Cisco 

Cisco 

n.v. 

0.67 

0.63 

0.53 

0.51

1.01

0.77

0.97 

1.00 

0.96 

0.97 

1.00 

1.03 

0.98 

0.83 

0.66 

0.66 

0.52 

0.52 

0.63 

0.65 

0.66 

0.62 

0.58 

0.66 

0.68 

0.65 

0.71 

0.60 

0.64 

0.54 

0.88 

-

0.08 

0.06 

0.06 

0.02 

0.07 

0.08 

0.05 

0.03 

0.07 

0.06 

0.04 

0.03 

0.05 

0.04 

0.04 

0.04 

0.06 

0.04 

0.05 

0.05 

0.04 

0.07 

0.06 

0.07 

0.07 

0.06 

0.06 

0.08 

0.07 

0.06 

0.09 

-

50 

10 

27 

4 

11 

8 

50 

50 

50 

50 

50 

50 

50 

100 

100 

50 

15 

30 

100 

100 

100 

37 

100 

100 

100 

100 

100 

100 

100 

100 

100 

cuttings 

cuttings 

cuttings 

cuttings 

cuttings 

cuttings 

cuttings 

core 

core 

core 

core 

core 

core 

core 

core 

core 

core 

core 

core 

outcrop - channel, single bench 

outcrop - channel, single bench 

outcrop - channel, single bench 

outcrop - channel, single bench 

outcrop - channel, single bench 

outcrop - channel, single bench 

outcrop - channel, multiple bench 

outcrop - channel, multiple bench 

outcrop - channel, multiple bench 

outcrop - channel, multiple bench 

outcrop - channel, single bench 

outcrop - channel, single bench 

outcrop - channel, single bench 

33.55365 

33.55365 

33.55365 

33.55365 

33.55365 

33.55365 

33.55365 

33.22028 

33.22028 

33.22028 

33.20265 

33.20265 

33.20265 

33.20265 

32.50000 

32.89583 

33.53333 

31.49167 

31.49167 

33.44626 

33.44626 

33.44626 

33.44626 

33.32615 

33.32615 

33.24486 

33.24486 

33.24486 

33.24486 

33.24486 

32.75575 

32.15374 

-98.49251 

-98.49251 

-98.49251 

-98.49251 

-98.49251 

-98.49251 

-98.49251 

-97.92909 

-97.92909 

-97.92909 

-97.87855 

-97.87855 

-97.87855 

-97.87855 

-98.40925 

-98.89167 

-97.92778 

-99.40833 

-99.40833 

-98.22089 

-98.22089 

-98.22089 

-98.36130 

-98.44349 

-98.44349 

-98.51884 

-98.51884 

-98.51884 

-98.51884 

-98.51884 

-98.92123 

-98.98459 

Values in italic are considered suspect due to low number of measurements, oxidation/tarnish, or proximity to high-reflecting pyrite. s.d. = standard deviation, n.v. = no vitrinite, n.a. = not 

analyzed. Samples TX-7 through TX-10 are multiple benches of a channel sample (see fig. 14A); all other outcrop samples (TX-1 through TX-6 and TX-11 through TX-13) are single bench 

channel samples. *Samples analyzed by Humble Geochemical Testing, Inc. (see Appendix 2 and Guevara and others, 2007). 

13
Table 2. Proximate-ultimate analytical data for coal and coaly shale samples from north-central Texas. See Figure 1 for sample locations. All data on an as-received basis 

except moist, mineral-matter-free calorific value. 

Sample ID ADL RM Moisture EM Ash VM FC H C N S O CV CV m,mmf ASTM FSI 

(wt.%) (wt.%) (wt.%) (wt.%) (wt.%) (wt.%) (wt.%) (wt.%) (wt.%) (wt.%) (wt.%) (wt.%) (Btu/lb) Btu/lb rank 

TX-7 20.47 4.71 24.22 25.17 11.63 27.56 36.59 2.75 45.31 1.01 0.65 14.43 7,202 8,233 Lignite 0 

TX-8 20.91 6.14 25.77 26.36 10.11 29.12 35.00 2.78 44.53 1.05 0.81 14.95 7,093 7,957 Lignite 0 

TX-9 24.42 4.45 27.78 25.28 5.54 26.59 40.09 2.99 49.05 1.09 0.65 12.90 8,029 8,538 SubC 0 

TX-10 23.54 3.37 26.12 20.22 21.74 20.65 31.49 2.79 39.35 0.80 0.60 8.60 6,675 8,721 SubC 0 

TX-11 24.45 6.72 29.53 28.45 12.09 26.82 31.56 2.25 38.96 0.82 1.10 15.25 6,071 6,968 Lignite 0 

TX-12 17.43 11.20 26.68 29.17 25.59 35.36 12.37 1.78 30.05 0.70 4.06 11.14 4,621 6,300 Lignite 0 

ADL = air-dried loss, wt.% = weight percent, RM = remnant moisture, EM = equilibrium moisture, VM = volatile matter, FC = fixed carbon, CV = calorific value, m,mmf = 

moist, mineral-matter-free, FSI = free swelling index, Btu/lb = British thermal units per pound, SubC = subbituminous C. 

14
Table 3. Rock-Eval and Leco TOC data for coals and coaly shales from north-central Texas. Refer to Figure 1 for sample locations. 

Sample ID Sample Type TOC S1 S2 S3 Tmax (°C) Ro Calc. (%) Ro Meas. (%) HI OI PI 

TX-2 

TX-6 

TX-9 

TX-12 

Morrison No. 1 240-250' 

Morrison No. 1 310-320' 

EP Tarrant WB-3 5402.3' 

EP Tarrant WB-3 5403.8' 

EP Tarrant WB-3 5404.2' 

Oxy Tarrant A-4 5541.0' 

Oxy Tarrant A-4 5541.7' 

TBEG 396 

outcrop 

outcrop 

outcrop 

outcrop 

cuttings 

cuttings 

core 

core 

core 

core 

core 

core 

37.29 

53.75 

61.50 

37.13 

50.28 

53.71 

46.93 

59.59 

36.83 

36.72 

28.20 

67.13 

0.22 

0.39 

0.35 

0.13 

2.66 

1.90 

13.15 

14.56 

11.85 

6.79 

4.81 

3.15 

2.78 

31.44 

35.35 

5.11 

45.71 

57.04 

94.05 

124.59 

111.01 

84.73 

64.13 

91.47 

17.29 

10.58 

12.32 

15.47 

9.07 

8.79 

1.74 

1.81 

1.26 

1.21 

0.99 

6.61 

438 

433 

433 

435 

425 

427 

451 

454 

449 

448 

448 

436 

0.72 

0.63 

0.63 

0.67 

0.49 

0.53 

0.96 

1.01 

0.92 

0.90 

0.90 

0.69 

0.65 

0.66 

0.71 

0.54 

0.55 

0.48 

1.00 

1.03 

0.98 

0.97 

0.96 

0.83 

7 

58 

57 

14 

91 

106 

200 

209 

301 

231 

227 

136 

46 

20 

20 

42 

18 

16 

4 

3 

3 

3 

4 

10 

0.07 

0.01 

0.01 

0.02 

0.05 

0.03 

0.12 

0.10 

0.10 

0.07 

0.07 

0.03 

TOC = wt.% total organic carbon, S1, S2 = mg hydrocarbons, S3 = mg CO2, HI = hydrogen Index (S2*100/TOC), OI = Oxygen Index (S3*100/TOC), PI = Production 

Index (S1/(S1+S2)). Ro Calc. (%) = 0.0180*Tmax - 7.16 (Humble Geochemical Testing, Inc.), Ro Meas. (%) from USGS Organic Petrology Laboratory (Table 1). 

15
Appendix 1: U.S. GEOLOGICAL SURVEY ORGANIC 

PETROLOGY LABORATORY REPORTS 

Report Information 

Results of petrographic analyses of coal and rock 

samples in the U.S. Geological Survey Organic Petrology 

Laboratory usually are reported in three parts; 1) a 

summary table (Table 1 of this report), 2) a vitrinite 

reflectance report (contained in this Appendix), and 3) a 

petrographic analysis report (not conducted as part of this 

study). 

The vitrinite reflectance report (this Appendix) 

includes five components; 1) a header with basic sample 

information including sample submitter, submission date, 

project name, sample identification, sample type, date of 

analysis, and the name of the analyst, 2) results, 

including the number of vitrinite reflectance 

measurements, the type of vitrinite maceral analyzed, the 

mean maximum or mean random reflectance value, the 

standard deviation of the mean reflectance value, and the 

sample rank, 3) data, which contain all of the measured 

reflectance values in percent to three decimal places, the 

maximum and minimum measured values, and the 

number of V-types (reflectance ranges of 0.1 percent), 4) 

a histogram of the reflectance data, and 5) a comment 

section which allows the analyst to record any pertinent 

details about the petrographic character of the sample. 

Sample Preparation and Analysis 

Samples submitted to the U.S. Geological Survey 

Organic Petrology Laboratory usually are prepared for 

analysis according to the American Society for Testing 

and Materials (ASTM) Standard Practice D 2797: 

Preparing Coal Samples for Microscopical Analysis by 

Reflected Light (ASTM, 2007), or the International 

Standards Organization (ISO) standard 7404-2: Methods 

for the petrographic analysis of coal-Part 2: Method of 

preparing coal samples (ISO, 1985). 

Samples are ground to pass a 850-μm (No. 20 mesh) 

or 1000-μm (No. 16 mesh) sieve in most cases (assampled drill cuttings sometimes are mounted for 

reflectance analysis without grinding). The particulate 

sample is mounted in a 1-inch mold in a heat-setting 

thermoplastic powder or epoxy resin medium. Two 

mounts are made for each sample. Examination surfaces 

are ground and polished prior to overnight desiccation. 

Vitrinite reflectance analyses are conducted 

according to the ASTM Standard Test Method D 2798: 

Microscopical Determination of the Vitrinite Reflectance 

of Coal (ASTM, 2007). One hundred measurements of 

the maximum or random reflectance of individual 

vitrinite grains in the sample are performed. Fifty 

measurements are made on each sample mount. In some 

cases, as when drill cuttings samples are analyzed, there 

is not sufficient sample present to obtain 100 

measurements. 

Petrographic analyses are conducted according to the 

ASTM Standard Test Method D 2799: Microscopical 

Determination of the Maceral Composition of Coal 

(ASTM, 2007), or ISO standard 7404-3: Methods for the 

petrographic analysis of bituminous coal and anthracitePart 3: Method of determining maceral group 

composition (ISO, 1994). In some cases, a modification 

of the ASTM D 2799 test method is included to 

incorporate examination with fluorescence microscopy, 

primarily for low-rank samples (lignite-subbituminous). 

For quantitative petrographic analysis, 500 

identifications are performed per sample according to the 

ISO 7404-3 standard and 1000 identifications are 

performed per sample according to the ASTM D 2799 

standard. When the fluorescence microscopy 

modification of ASTM D 2799 is incorporated into the 

analysis, 2000 identifications are performed per sample – 

1000 under tungsten halogen illumination and 1000 

under xenon gas discharge (or other fluorescence source) 

illumination. Maceral nomenclature for huminite, 

vitrinite, and inertinite groups is according to the 

classification schemes formulated by members of the 

International Committee for Coal and Organic Petrology 

(ICCP), and presented in ICCP (1998), ICCP (2001), and 

Sýkorová and others (2005). Maceral nomenclature for 

the liptinite group is according to Taylor and others 

(1998). Mineral matter content of the sample is 

calculated according to the Parr Formula (ASTM, 2007) 

when ash yield and other pertinent data are available, or 

is determined by petrographic point count. 

Data Quality 

The U.S. Geological Survey Organic Petrology 

Laboratory participates in a quarterly round robin interlaboratory exercise hosted by a commercial laboratory 

(CoalTech Petrographic Associates, Inc.). Results of the 

exercise are used to evaluate the precision and bias of our 

analytical methods, to develop proficiency in analyses of 

different sample types, to correct deficiencies in 

16
analytical techniques, and to develop evidence of the 

repeatability and reproducibility of analytical methods. 

In addition, the U.S. Geological Survey Organic 

Petrology Laboratory maintains accreditations in 

methods of coal and dispersed organic matter 

petrographic analysis from the International Committee 

for Coal and Organic Petrology. Accreditation 

information, certificate number, and expiration date are 

given in the footer material of individual sample reports. 

References 

ASTM, 2007, Annual book of ASTM standards: Petroleum products, 

lubricants, and fossil fuels; Gaseous fuels; coal and coke, sec. 5, 

v. 5.06: ASTM International, West Conshohocken, PA, 711 p. 

ICCP, 1998, The new vitrinite classification (ICCP System 1994): Fuel, v. 

77, p. 349-358. 

ICCP, 2001, The new inertinite classification (ICCP System 1994): Fuel, 

v. 80, p. 459-471. 

ISO, 1985, Methods for the petrographic analysis of bituminous coal 

and anthracite-Part 2: Method of preparing coal samples: 

International Organization for Standardization Standard 7404-2, 8 

p. 

ISO, 1994, Methods for the petrographic analysis of bituminous coal 

and anthracite-Part 3: Method of determining maceral group 

composition: International Organization for Standardization 

Standard 7404-3, 6 p. 

Sýkorová, I., Pickel, W., Christanis, K., Wolf, M., Taylor, G.H., and 

Flores, D., 2005, Classification of huminite-ICCP System 1994: 

International Journal of Coal Geology, v. 62, p. 85-106. 

Taylor, G.H., Teichmüller, Davis, A., Diessel, C.F.K., Littke, R., and 

Robert, P., 1998, Organic Petrology: Gerbrüder Borntraeger, 

Berlin, 704 p. 

17
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 11 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.51 

s.d.: 0.05 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

2/26/2007 

P. Hackley 

Baldwin No. 1 280-290' 

Baldwin No. 1 280-290' 

0 

1 

2 

3 

4 

0.410.430.450.470.490.510.530.550.570.590.610.63 

Ro ran 

No. of measurements 

DATA 

0.625 

0.558 

0.495 

0.475 

0.456 

0.499 

0.414 

0.499 

0.488 

0.525 

0.522 

min: 0.414 max: 0.625 V-types: 3 

COMMENT
 

Sample consists of 10-15 small rock fragments containing dispersed vitrinite fragments.
 

U.S. Department of the Interior ICCP/SCAP-068/AB Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

18
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 

maceral type: 

Ro ran (ISO/ASTM): 

s.d.: 

Edgar Guevara 

Texas CBM 

3/13/2006 

cuttings 

P. Hackley 

Baldwin No. 1 560-570' 

Baldwin No. 1 560-570' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

min: max: V-types: 

COMMENT
 

Sample originally analyzed by Humble (Appendix 2). Checked and accepted at USGS 3/12/07.
 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

19
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 30 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.62 

s.d.: 0.05 

E. Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

8/4/2006 

P. Hackley 

Baldwin No. 1 800-810' 

Baldwin No. 1 800-810' 

0 

1 

2 

3 

4 

5 

0.530.550.570.590.610.630.650.670.690.71 

Ro ran 

No. of measurements 

DATA 

0.682 

0.588 

0.652 

0.577 

0.660 

0.583 

0.563 

0.544 

0.592 

0.651 

0.689 

0.660 

0.609 

0.598 

0.618 

0.698 

0.642 

0.582 

0.673 

0.662 

0.584 

0.627 

0.641 

0.578 

0.684 

0.533 

0.674 

0.573 

0.568 

0.637 

min: 0.533 max: 0.698 V-types: 2 

COMMENT 

Sample contains approximately 10 rock fragments with dispersed indigenous vitrinite and inertinite fragments. 

Possible bimodal distribution with 1 population at 0.59% and another at 0.66% reflectance but probably not enough 

data to make the distinction. Mean value of all data is consistent with Humble determinations from higher and lower in 

well. High polishing relief. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

20
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 25 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.55 

s.d.: 0.05 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

3/5/2007 

P. Hackley 

Baldwin No. 1 810-820' 

Baldwin No. 1 810-820' 

0 

1 

2 

3 

4 

0.450.470.490.510.530.550.570.590.610.630.650.670.69 

Ro ran 

No. of measurements 

DATA 

0.542 

0.553 

0.525 

0.551 

0.600 

0.553 

0.601 

0.561 

0.482 

0.534 

0.596 

0.502 

0.482 

0.594 

0.562 

0.564 

0.486 

0.508 

0.571 

0.633 

0.615 

0.679 

0.459 

0.603 

0.506 

min: 0.459 max: 0.679 V-types: 3 

COMMENT 

Sample contains 25-30 rock fragments consisting primarily of telinite and carbonaceous shale with dispersed vitrinite 

and inertinite fragments. Measured value is generally consistent with others determined for Baldwin hole. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

21
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 4 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.70 

s.d.: 0.01 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

3/5/2007 

P. Hackley 

Baldwin No. 1 980-990' 

Baldwin No. 1 980-990' 

0 

1 

2 

3 

0.690.710.73 

Ro ran 

No. of measurements 

DATA 

0.701 

0.712 

0.692 

0.712 

min: 0.692 max: 0.712 V-types: 2 

COMMENT 

Sample contains four rock fragments which consist of homogenized clean telinite. Measured value may be boosted 

by coaggulated corpogelinite. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

22
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 

maceral type: 

Ro ran (ISO/ASTM): 

s.d.: 

Edgar Guevara 

Texas CBM 

3/13/2006 

cuttings 

P. Hackley 

Baldwin No. 1 1460-1470' 

Baldwin No. 1 1460-1470' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

min: max: V-types: 

COMMENT
 

Sample originally analyzed by Humble (Appendix 2). Checked and accepted at USGS 3/13/07.
 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

23
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 5 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.64 

s.d.: 0.07 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

12/6/2006 

P. Hackley 

Baldwin No. 1 2750-2760' 

Baldwin No. 1 2750-2760' 

0 

1 

2 

0.550.570.590.610.630.650.670.690.710.730.75 

Ro ran 

No. of measurements 

DATA 

0.646 

0.573 

0.703 

0.554 

0.742 

min: 0.554 max: 0.742 V-types: 3 

COMMENT 

Sample contains 6 rock fragments, of which one is tarnished and oxidized telovitrinite. Measured value should be 

considered suspect. Other rock fragments contain dispersed inertinite. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

24
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 3 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.72 

s.d.: 0.03 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

2/27/2006 

P. Hackley 

Baldwin No. 1 2760-2770' 

Baldwin No. 1 2760-2770' 

0 

1 

2 

0.670.690.710.730.750.77 

Ro ran 

No. of measurements 

DATA 

0.674 

0.727 

0.751 

min: 0.674 max: 0.751 V-types: 2 

COMMENT
 

Sample consists of three small rock fragments.
 

U.S. Department of the Interior ICCP/SCAP-068/AB Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

25
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 8 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.71 

s.d.: 0.04 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

12/6/2006 

P. Hackley 

Baldwin No. 1 2770-2780' 

Baldwin No. 1 2770-2780' 

0 

1 

2 

3 

0.650.670.690.710.730.750.770.79 

Ro ran 

No. of measurements 

DATA 

0.789 

0.675 

0.731 

0.723 

0.731 

0.728 

0.675 

0.656 

min: 0.656 max: 0.789 V-types: 2 

COMMENT 

Sample consists of 6 rock fragments containing pyrite-rich banded telovitrinite. Fragments display various poor-good 

polish quality and some tarnishing is present. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

26
VITRINITE REFLECTANCE REPORT 

 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 

maceral type: 

Ro ran (ISO/ASTM): 0.55 

s.d.: 0.03 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

11/14/2006 

P. Hackley 

Morrison No. 1 240-250' 

Morrison No. 1 240-250' 

0 

2 

4 

6 

8 

10 

12 

0.48

0.5

0.520.540.560.58

0.6

0.62 

Ro ran 

No. of measurements 

DATA 

0.530 

0.542 

0.511 

0.504 

0.527 

0.565 

0.554 

0.613 

0.601 

0.562 

0.525 

0.546 

0.515 

0.561 

0.488 

0.581 

0.552 

0.570 

0.565 

0.599 

0.571 

0.565 

0.593 

0.577 

0.533 

0.541 

0.488 

0.516 

0.509 

0.560 

0.567 

0.543 

0.563 

0.581 

0.573 

0.551 

0.493 

0.604 

0.586 

0.574 

0.519 

0.508 

0.568 

0.556 

0.559 

0.567 

0.555 

0.577 

0.579 

0.547 

min: 0.488 max: 0.613 V-types: 3 

COMMENT 

Contains abundant trimaceral coal fragments. Good coal bed intersected at this depth in well. This measurement is 

considered well-constrained. Fluorescence is relatively faint. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

27
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 65 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.48 

s.d.: 0.06 

Edgar Guevara 

Texas CBM 

telohuminite 

3/13/2006 

cuttings 

3/5/2007 

P. Hackley 

Morrison No. 1 310-320' 

Morrison No. 1 310-320' 

0 

1 

2 

3 

4 

5 

6 

7 

0.38

0.4

0.420.440.460.48

0.5

0.520.540.560.58

0.6

0.62 

Ro ran 

No. of measurements 

DATA 

0.469 0.512 0.402 0.460 0.602 0.541 0.413 

0.544 0.533 0.437 0.542 0.492 0.498 0.530 

0.509 0.443 0.485 0.491 0.412 0.472 0.404 

0.585 0.448 0.414 0.467 0.434 0.337 0.496 

0.561 0.485 0.576 0.456 0.464 0.442 0.508 

0.571 0.543 0.507 0.598 0.496 0.396 

0.547 0.537 0.516 0.408 0.467 0.472 

0.549 0.468 0.431 0.558 0.554 0.390 

0.382 0.516 0.523 0.471 0.469 0.429 

0.424 0.506 0.405 0.412 0.575 0.492 

min: 0.337 max: 0.602 V-types: 4 

COMMENT 

Originally analyzed by Humble (see Appendix 2). Reanalyzed at USGS 3/5/07. Reflectance value determined at 

USGS is more consistent with other values from Morrison No. 1 hole and is preferred. Sample consists of 

approximately 50 small (<1 mm) clean coal fragments. Coal is telinite-rich, inertinite-poor. Detrovitrinite less abundant 

than telovitrinite. 

U.S. Department of the Interior ICCP/SCAP-068/AB Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

28
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 

maceral type: 

Ro ran (ISO/ASTM): 

s.d.: 

Edgar Guevara 

Texas CBM 

3/13/2006 

cuttings 

P. Hackley 

Morrison No. 1 1350-1360' 

Morrison No. 1 1350-1360' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

min: max: V-types: 

COMMENT
 

Originally analyzed by Humble (see Appendix 2). Checked and accepted at USGS 3/12/07. High polishing relief. 

Mineralized vitrinite fragments present. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

29
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 10 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.73 

s.d.: 0.08 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

3/5/2007 

P. Hackley 

Morrison No. 1 1650-1660' 

Morrison No. 1 1650-1660' 

0 

1 

2 

0.6

0.620.640.660.68

0.7

0.720.740.760.78

0.8

0.820.840.86 

Ro ran 

No. of measurements 

DATA 

0.717 

0.758 

0.749 

0.770 

0.834 

0.866 

0.668 

0.704 

0.602 

0.637 

min: 0.602 max: 0.866 V-types: 3 

COMMENT
 

Sample contains approximately 10 rock fragments consisting of homogeneous telinite.
 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

30
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 10 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.81 

s.d.: 0.03 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

3/5/2007 

P. Hackley 

Morrison No. 1 1730-1740' 

Morrison No. 1 1730-1740' 

0 

1 

2 

3 

0.760.78

0.8

0.820.840.860.88 

Ro ran 

No. of measurements 

DATA 

0.795 

0.801 

0.824 

0.773 

0.811 

0.762 

0.791 

0.856 

0.779 

0.864 

min: 0.762 max: 0.864 V-types: 2 

COMMENT 

Tarnished and discolored sections present. Measured mean random reflectance is consistent with other values in 

hole. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

31
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 1 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.84 

s.d.: 0.00 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

3/13/2006 

P. Hackley 

Morrison No. 1 2030-2040' 

Morrison No. 1 2030-2040' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

0.836 

min: 0.836 max: 0.836 V-types: 1 

COMMENT 

Originally analyzed by Humble (see Appendix 2). Repolished and examined at USGS on 3/12/07. Most of organic 

material is fusinite. One fragment reflects at 0.84%, consistent with mean Humble value of 0.91%. However, Humble 

reported a total of 29 measurements (see Appendix 2), inconsistent with the amount of material available. Sample 

material may have been lost during repolish. USGS value of 0.84% is preferred. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

32
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 1 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.62 

s.d.: 0.00 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

12/6/2006 

P. Hackley 

Furr No. 1 100-110' 

Furr No. 1 100-110' 

0 

1 

0 

Ro ran 

No. of measurements 

DATA 

0.624 

min: 0.624 max: 0.624 V-types: 1 

COMMENT
 

Sample contains approximately 15 rock fragments which contain dispersed recycled or oxidized vitrinite (R o>0.70), 

and inertinite fragments. One measured value (0.62 %) is consistent with Furr No. 1 540-550' (Ro=0.61 %, n=15). 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

33
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 8 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.55 

s.d.: 0.07 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

3/1/2007 

P. Hackley 

Furr No. 1 110-120' 

Furr No. 1 110-120' 

0 

1 

2 

0.430.450.470.490.510.530.550.570.590.610.630.650.67 

Ro ran 

No. of measurements 

DATA 

0.433 

0.546 

0.583 

0.520 

0.491 

0.573 

0.615 

0.652 

min: 0.433 max: 0.652 V-types: 3 

COMMENT
 

Sample contains 10-15 rock fragments, consisting of mineral matter with dispersed vitrinite and inertinite fragments. 

Most are partially plucked from examination surface. Measured value is consistent with others from close intervals in 

the Furr No. 1 hole.
 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

34
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): N/A 

s.d.: N/A 

Edgar Guevara 

Texas CBM 

N/A 

3/13/2006 

cuttings 

12/6/2006 

P. Hackley 

Furr No. 1 380-390' 

Furr No. 1 380-390' 

0 

1 

00000000000 

Ro ran 

No. of measurements 

DATA 

min: 0.000 max: 0.000 V-types: 0 

COMMENT 

Sample contains 5 rock fragments which contain dispersed inertinite fragments. No vitrinite in sample. High polishing 

relief. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

35
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 22 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.55 

s.d.: 0.07 

Edgar Guevara 

Texas CBM 

telovitrinite 

2/26/2007 

cuttings 

2/26/2007 

P. Hackley 

Furr No. 1 440-450' 

Furr No. 1 440-450' 

0 

1 

2 

3 

4 

0.410.430.450.470.490.510.530.550.570.590.610.630.650.67 

Ro ran 

No. of measurements 

DATA 

0.651 

0.505 

0.519 

0.646 

0.536 

0.572 

0.475 

0.418 

0.653 

0.594 

0.552 

0.584 

0.493 

0.488 

0.585 

0.523 

0.524 

0.448 

0.492 

0.576 

0.582 

0.647 

min: 0.418 max: 0.653 V-types: 3 

COMMENT 

Sample consists of 5 larger (2-10 mm) and 6 smaller (<1 mm) rock fragments containing dispersed vitrinite and 

inertinite. 

U.S. Department of the Interior ICCP/SCAP-068/AB Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

36
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 25 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.58 

s.d.: 0.08 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

3/1/2007 

P. Hackley 

Furr No. 1 530-540' 

Furr No. 1 530-540' 

0 

1 

2 

3 

0.440.460.48

0.5

0.520.540.560.58

0.6

0.620.640.660.68

0.7

0.720.74 

Ro ran 

No. of measurements 

DATA 

0.623 

0.662 

0.481 

0.447 

0.553 

0.505 

0.724 

0.538 

0.618 

0.445 

0.647 

0.637 

0.582 

0.608 

0.489 

0.509 

0.691 

0.688 

0.583 

0.602 

0.701 

0.492 

0.494 

0.521 

0.641 

min: 0.445 max: 0.724 V-types: 4 

COMMENT 

Sample consists of 30-50 mineralized coal fragments, equally divided between inertinite and vitrinite. Tarnishing and 

signs of oxidation present. Measured value is consistent with others in Furr No. 1 hole. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

37
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 15 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.61 

s.d.: 0.04 

E. Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

8/3/2006 

P. Hackley 

Furr No. 1 540-550' 

Furr No. 1 540-550' 

0 

1 

2 

3 

0.560.58

0.6

0.620.640.660.68

0.7 

Ro ran 

No. of measurements 

DATA 

0.593 

0.565 

0.587 

0.685 

0.670 

0.645 

0.579 

0.560 

0.628 

0.650 

0.614 

0.606 

0.590 

0.561 

0.605 

min: 0.560 max: 0.685 V-types: 2 

COMMENT 

Sample contains seven rock fragments with dispersed and texturally indigenous vitrinite (of same reflectance) and 

minor fusinite. Mean value is interpreted to reflect in situ maturity. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

38
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 35 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.56 

s.d.: 0.04 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

2/27/2007 

P. Hackley 

Furr No. 1 610-620' 

Furr No. 1 610-620' 

0 

1 

2 

3 

4 

5 

6 

7 

8 

0.470.490.510.530.550.570.590.610.630.650.67 

Ro ran 

No. of measurements 

DATA 

0.495 

0.505 

0.598 

0.619 

0.563 

0.538 

0.487 

0.506 

0.567 

0.577 

0.535 

0.613 

0.547 

0.562 

0.561 

0.482 

0.558 

0.592 

0.556 

0.579 

0.553 

0.539 

0.564 

0.573 

0.477 

0.586 

0.573 

0.575 

0.613 

0.656 

0.570 

0.545 

0.552 

0.575 

0.575 

min: 0.477 max: 0.656 V-types: 3 

COMMENT
 

Sample contains 20-25 coal fragments. Coal is banded and relatively ash-free, pyrite is abundant.
 

U.S. Department of the Interior ICCP/SCAP-068/AB Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

39
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 4 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.53 

s.d.: 0.06 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

3/1/2007 

P. Hackley 

Furr No. 1 730-740' 

Furr No. 1 730-740' 

0 

1 

2 

0.430.450.470.490.510.530.550.570.590.61 

Ro ran 

No. of measurements 

DATA 

0.528 

0.592 

0.433 

0.579 

min: 0.433 max: 0.592 V-types: 2 

COMMENT 

Sample contains 15-20 rock fragments, most of which is pyritized fusinite. Some homogenenous vitrinite fragments 

with framboidal pyrite inclusions reflect at 0.7-0.8 percent and probably are somewhat oxidized. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

40
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 9 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.49 

s.d.: 0.04 

Edgar Guevara 

Texas CBM 

telohuminite 

3/13/2006 

cuttings 

9/11/2006 

P. Hackley 

Furr No. 1 770-780' 

Furr No. 1 770-780' 

0 

1 

2 

0.4

0.420.440.460.48

0.5

0.520.540.56 

Ro ran 

No. of measurements 

DATA 

0.431 

0.407 

0.517 

0.484 

0.503 

0.499 

0.521 

0.464 

0.544 

min: 0.407 max: 0.544 V-types: 2 

COMMENT 

Sample contains 6 rock fragments with dispersed vitrinite. Crystalline fragments of cottonball (non-fused lucite) have 

extruded onto examination surface through partial pluck. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

41
SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 

s.d.: 

Edgar Guevara 

Texas CBM 

3/13/2006 

cuttings 

3/12/2007 

P. Hackley 

Furr No. 1 820-830' 

Furr No. 1 820-830' 

0 

1 

2 

Ro ran 

No. of measurements 

VITRINITE REFLECTANCE REPORT 

DATA 

min: 0.000 max: 0.000 V-types: 0 

COMMENT 

Originally analyzed by Humble (see Appendix 2). Repolished and examined on 3/12/07 at USGS. Does not contain 

vitrinite, consistent with Humble report. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

42
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 30 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.49 

s.d.: 0.05 

Edgar Guevara 

Texas CBM 

telohuminite 

3/13/2006 

cuttings 

9/11/2006 

P. Hackley 

Furr No. 1 1650-1660' 

Furr No. 1 1650-1660' 

0 

1 

2 

3 

4 

5 

6 

7 

8 

0.410.430.450.470.490.510.530.550.570.59 

Ro ran 

No. of measurements 

DATA 

0.420 

0.462 

0.561 

0.554 

0.423 

0.452 

0.583 

0.428 

0.532 

0.489 

0.478 

0.569 

0.448 

0.543 

0.445 

0.417 

0.452 

0.445 

0.445 

0.511 

0.569 

0.428 

0.443 

0.447 

0.448 

0.491 

0.569 

0.485 

0.524 

0.509 

min: 0.417 max: 0.583 V-types: 2 

COMMENT 

Sample contains 15-20 rock fragments with dispersed vitrinite and inertinite. Scattered pyrite present. Measured 

value is consistent with Humble-determined value from deeper in hole (0.55 @ 2160-2170'; see Appendix 2). 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

43
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 10 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.51 

s.d.: 0.04 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

11/14/2006 

P. Hackley 

Furr No. 1 1950-1960' 

Furr No. 1 1950-1960' 

0 

1 

2 

0.450.470.490.510.530.550.570.59 

Ro ran 

No. of measurements 

DATA 

0.577 

0.468 

0.494 

0.555 

0.482 

0.455 

0.537 

0.530 

0.508 

0.516 

min: 0.455 max: 0.577 V-types: 2 

COMMENT 

Sample contains 5 rock fragments, of which two contain dispersed indigenous vitrinite. Measured value is consistent 

with others determined above and below in Furr No. 1. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

44
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 

maceral type: 

Ro ran (ISO/ASTM): 

s.d.: 

Edgar Guevara 

Texas CBM 

3/13/2006 

cuttings 

Furr No. 1 2160-2170' 

Furr No. 1 2160-2170' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

min: max: V-types: 

COMMENT 

Originally analyzed by Humble (see Appendix 2). Repolished and checked at USGS on 2/28/07. No organic material 

present. Material may have been lost during repolish. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

45
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 

maceral type: 

Ro ran (ISO/ASTM): 

s.d.: 

Edgar Guevara 

Texas CBM 

3/13/2006 

cuttings 

Thompson 780-790' 

Thompson 780-790' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

min: max: V-types: 

COMMENT 

Originally analyzed by Humble (see Appendix 2). Repolished and checked at USGS on 3/12/07. No organic material 

present. Material may have been lost during repolish. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

46
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 2 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.86 

s.d.: 0.00 

E. Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

8/3/2006 

P. Hackley 

Thompson No. 1 820-830' 

Thompson No. 1 820-830' 

0 

1 

2 

3 

0.850.87 

Ro ran 

No. of measurements 

DATA 

0.857 

0.857 

min: 0.857 max: 0.857 V-types: 1 

COMMENT 

Sample is 3 very small rock fragments. Two are telovitrinite of relatively high and equivalent reflectance, probably not 

representative of in situ maturity based on comparison to measured values from other Young and Archer County well 

cuttings. Interpreted to be recycled. Third rock fragment does not contain vitrinite. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

47
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 2 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.75 

s.d.: 0.02 

E. Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

8/4/2006 

P. Hackley 

Thompson No. 1 980-990' 

Thompson No. 1 980-990' 

0 

1 

2 

0.720.740.760.78 

Ro ran 

No. of measurements 

DATA 

0.724 

0.770 

min: 0.724 max: 0.770 V-types: 1 

COMMENT 

Sample contains two rock fragments, one of which is recycled? vitrinite with obvious oxidation rinds. The two 

measured reflectance values were determined on this fragment. The other rock fragment is mostly fusinite with pyrite 

mineralization. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

48
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 

maceral type: 

Ro ran (ISO/ASTM): 

s.d.: 

Edgar Guevara 

Texas CBM 

3/13/2006 

cuttings 

11/14/2006 

P. Hackley 

Donnell No. 1 30-40' 

Donnell No. 1 30-40' 

0 

0.2 

0.4 

0.6 

0.8 

1 

1.2 

Ro ran 

No. of measurements 

DATA 

min: 0.000 max: 0.000 V-types: 0 

COMMENT 

Sample is five rock fragments which do not contain indigenous vitrinite. One fragment is recyled bitumen with 

reflectance of 1.2%. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

49
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 30 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.63 

s.d.: 0.05 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

11/13/2006 

P. Hackley 

Donnell No. 1 310-320' 

Donnell No. 1 310-320' 

0 

1 

2 

3 

4 

0.540.560.58

0.6

0.620.640.660.68

0.7

0.72 

Ro ran 

No. of measurements 

DATA 

0.650 

0.696 

0.654 

0.636 

0.695 

0.603 

0.575 

0.584 

0.617 

0.549 

0.682 

0.706 

0.622 

0.618 

0.614 

0.549 

0.641 

0.572 

0.581 

0.672 

0.566 

0.645 

0.610 

0.708 

0.686 

0.629 

0.636 

0.661 

0.707 

0.576 

min: 0.549 max: 0.708 V-types: 3 

COMMENT 

Sample is approximately 30 rock fragments. Dirty, trimaceralic coal. Brighter corpogelinite is abundant and reflects at 

approximately 0.75%. Oxidation along cracks in vitrinite reflects at around 0.95%. Tarnishing present. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

50
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 25 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.63 

s.d.: 0.04 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

11/14/2006 

P. Hackley 

Donnell No. 1 320-330' 

Donnell No. 1 320-330' 

0 

1 

2 

3 

4 

5 

6 

0.520.540.560.58

0.6

0.620.640.660.68

0.7 

Ro ran 

No. of measurements 

DATA 

0.615 

0.591 

0.584 

0.662 

0.526 

0.649 

0.689 

0.668 

0.664 

0.637 

0.644 

0.667 

0.628 

0.557 

0.650 

0.631 

0.560 

0.617 

0.657 

0.611 

0.618 

0.672 

0.667 

0.562 

0.608 

min: 0.526 max: 0.689 V-types: 2 

COMMENT 

Sample is approximately 20 rock fragments. Fragments are dirty trimaceral coal. Brighter corpogelinite present in 

range of 0.7-0.8% reflectance. Sample is very similar to overlying 310-320' fragments. High polishing relief. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

51
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 40 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.61 

s.d.: 0.05 

Edgar Guevara 

Texas CBM 

telovitrinite 

11/21/2006 

cuttings 

12/6/2006 

P. Hackley 

Donnell No. 1 330-340' 

Donnell No. 1 330-340' 

0 

1 

2 

3 

4 

5 

6 

0.520.540.560.58

0.6

0.620.640.660.68

0.7

0.72 

Ro ran 

No. of measurements 

DATA 

0.633 

0.615 

0.654 

0.522 

0.626 

0.657 

0.634 

0.661 

0.576 

0.572 

0.594 

0.604 

0.707 

0.528 

0.628 

0.709 

0.684 

0.702 

0.568 

0.545 

0.602 

0.590 

0.532 

0.552 

0.575 

0.637 

0.529 

0.642 

0.537 

0.577 

0.612 

0.566 

0.669 

0.586 

0.602 

0.576 

0.655 

0.583 

0.643 

0.591 

min: 0.522 max: 0.709 V-types: 3 

COMMENT
 

Sample contains approximately 5 rock fragments sized 4-5 mm and approximately 35 rock fragments sized <1mm. 

Fragments are of vitrinite-rich carbonaceous shale, and very dirty detrital coal.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

52
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 30 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.61 

s.d.: 0.04 

E. Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

8/4/2006 

P. Hackley 

Donnell No. 1 380-390' 

Donnell No. 1 380-390' 

0 

1 

2 

3 

4 

5 

6 

0.520.540.560.58

0.6

0.620.640.660.68 

Ro ran 

No. of measurements 

DATA 

0.608 

0.564 

0.555 

0.577 

0.548 

0.603 

0.605 

0.678 

0.632 

0.521 

0.604 

0.551 

0.620 

0.572 

0.637 

0.649 

0.562 

0.573 

0.591 

0.613 

0.648 

0.652 

0.621 

0.603 

0.657 

0.572 

0.639 

0.638 

0.662 

0.641 

min: 0.521 max: 0.678 V-types: 2 

COMMENT 

Sample comprised of approximately 15 rock fragments, 85 percent of which are coal with approximately equal 

distribution of telo- and detrovitrinite. Several fragments are detrital, inertinite-, liptinite-, and mineral matter-rich. 1-2 

rock fragments with dispersed organic material also present. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

53
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 

s.d.: 

Edgar Guevara 

Texas CBM 

3/13/2006 

cuttings 

3/12/2007 

P. Hackley 

Donnell No. 1 390-400' 

Donnell No. 1 390-400' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

min: 0.000 max: 0.000 V-types: 0 

COMMENT 

Originally analyzed by Humble (see Appendix 2). Repolished and examined at USGS 3/12/07. Does not contain 

vitrinite, consistent with Humble report. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

54
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 28 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.62 

s.d.: 0.06 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

2/27/2006 

P. Hackley 

Donnell No. 1 410-420' 

Donnell No. 1 410-420' 

0 

1 

2 

3 

4 

5 

0.530.550.570.590.610.630.650.670.690.710.73 

Ro ran 

No. of measurements 

DATA 

0.544 

0.599 

0.657 

0.599 

0.601 

0.692 

0.669 

0.603 

0.715 

0.662 

0.588 

0.721 

0.566 

0.573 

0.570 

0.564 

0.553 

0.566 

0.532 

0.560 

0.699 

0.553 

0.655 

0.621 

0.531 

0.700 

0.696 

0.718 

min: 0.531 max: 0.721 V-types: 3 

COMMENT
 

Sample contains approximately 30 coal fragments - some are inertinite plus mineral matter.
 

U.S. Department of the Interior ICCP/SCAP-068/AB Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

55
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 15 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.58 

s.d.: 0.07 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

3/5/2007 

P. Hackley 

Donnell No. 1 420-430' 

Donnell No. 1 420-430' 

0 

1 

2 

3 

4 

0.470.490.510.530.550.570.590.610.630.650.670.690.710.73 

Ro ran 

No. of measurements 

DATA 

0.473 

0.561 

0.510 

0.627 

0.584 

0.576 

0.556 

0.492 

0.581 

0.487 

0.649 

0.656 

0.592 

0.712 

0.582 

min: 0.473 max: 0.712 V-types: 4 

COMMENT 

3/5/07 - Sample needs to be repolished. Tarnished - oxidation alteration present. Repolished and examined 3/12/07. 

Measured mean (0.58%) is slightly lower than other intervals nearby in Donnell hole but consistent overall. Sample 

consists of about 8 rock fragments of 2-10 mm size. Fragments are of trimacerite coal, fusinite, and mineral matter 

with no organic material present. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

56
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.62 

s.d.: 0.07 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

2/28/2007 

P. Hackley 

Donnell No. 1 440-450' 

Donnell No. 1 440-450' 

0 

1 

2 

3 

4 

5 

6 

0.520.540.560.58

0.6

0.620.640.660.68

0.7

0.720.740.760.78

0.8 

Ro ran 

No. of measurements 

DATA 

0.644 

0.754 

0.598 

0.776 

0.792 

0.627 

0.643 

0.748 

0.596 

0.521 

0.542 

0.607 

0.547 

0.702 

0.701 

0.616 

0.639 

0.571 

0.615 

0.656 

0.614 

0.615 

0.745 

0.712 

0.591 

0.658 

0.523 

0.581 

0.538 

0.587 

0.631 

0.621 

0.634 

0.554 

0.542 

0.657 

0.668 

0.619 

0.651 

0.565 

0.544 

0.526 

0.549 

0.523 

0.627 

0.574 

0.591 

0.759 

0.538 

0.648 

min: 0.521 max: 0.792 V-types: 3 

COMMENT 

Sample consists of abundant fragments of banded coal. Many fragments are tarnished. Measured value is consistent 

with overlying 410-420' interval (Ro = 0.62 percent), but inconsistent with underlying 450-460' interval, which is about 

0.75 percent. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

57
SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.77 

s.d.: 0.05 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

2/12/2007 

P. Hackley 

Donnell No. 1 450-460' 

Donnell No. 1 450-460' 

0 

1 

2 

3 

4 

5 

6 

7 

0.660.68

0.7

0.720.740.760.78

0.8

0.820.840.860.88 

Ro ran 

No. of measurements 

VITRINITE REFLECTANCE REPORT 

DATA 

0.785 

0.749 

0.802 

0.792 

0.788 

0.815 

0.744 

0.751 

0.729 

0.732 

0.748 

0.718 

0.857 

0.832 

0.858 

0.785 

0.842 

0.803 

0.786 

0.798 

0.819 

0.756 

0.689 

0.662 

0.740 

0.716 

0.793 

0.736 

0.815 

0.801 

0.771 

0.792 

0.703 

0.692 

0.754 

0.704 

0.868 

0.841 

0.801 

0.783 

0.720 

0.768 

0.783 

0.810 

0.733 

0.739 

0.727 

0.703 

0.695 

0.726 

min: 0.662 max: 0.868 V-types: 3 

COMMENT 

Sample contains 50+ rock fragments, composed of dirty trimaceral carbonaceous shale and detrital coal. Post 

sampling oxidation evidence abundant. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

58
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 13 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.60 

s.d.: 0.06 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

3/14/2007 

P. Hackley 

Donnell No. 1 480-490' 

Donnell No. 1 480-490' 

0 

1 

2 

3 

4 

0.490.510.530.550.570.590.610.630.650.670.690.71 

Ro ran 

No. of measurements 

DATA 

0.626 

0.641 

0.550 

0.531 

0.526 

0.493 

0.569 

0.628 

0.591 

0.694 

0.702 

0.653 

0.628 

min: 0.493 max: 0.702 V-types: 4 

COMMENT 

Sample contains 6 rock fragments consisting of coal, fusinite, and mineral matter with dispersed vitrinite, and 

inertinite particles. Measured value is consistent with others from hole. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

59
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 5 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.70 

s.d.: 0.05 

E. Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

8/4/2006 

P. Hackley 

Donnell No. 1 790-800' 

Donnell No. 1 790-800' 

0 

1 

2 

0.630.650.670.690.710.730.750.77 

Ro ran 

No. of measurements 

DATA 

0.656 

0.758 

0.718 

0.633 

0.744 

min: 0.633 max: 0.758 V-types: 2 

COMMENT 

Sample contains approximately 10 rock fragments, of which 2-3 contain some oxidized and/or stained-tarnished 

vitrinite. Mean reflectance value should be considered suspect due to oxidation and tarnishing. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

60
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 6 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.69 

s.d.: 0.05 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

11/21/2006 

P. Hackley 

Donnell No. 1 800-810' 

Donnell No. 1 800-810' 

0 

0.5 

1 

1.5 

2 

2.5 

0.620.640.660.68

0.7

0.720.740.76 

Ro ran 

No. of measurements 

DATA 

0.634 

0.755 

0.621 

0.671 

0.704 

0.755 

min: 0.621 max: 0.755 V-types: 2 

COMMENT 

Sample contains approximately 15 rock fragments with high polishing relief. Very lean in dispersed vitrinite. Highreflecting pyrite obscures reflectance of adjacent vitrinite in best fragment. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

61
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 4 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.70 

s.d.: 0.05 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

11/21/2006 

P. Hackley 

Donnell No. 1 810-820' 

Donnell No. 1 810-820' 

0 

0.2 

0.4 

0.6 

0.8 

1 

1.2 

0.630.650.670.690.710.730.750.770.79 

Ro ran 

No. of measurements 

DATA 

0.720 

0.682 

0.779 

0.637 

min: 0.637 max: 0.779 V-types: 2 

COMMENT
 

Sample contains three very small rock fragments. Two contain small sparse dispersed indigenous vitrinite fragments; 

the third contains inertinite fragments only.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

62
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 20 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.70 

s.d.: 0.04 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

11/16/2006 

P. Hackley 

Donnell No. 1 1130-1140' 

Donnell No. 1 1130-1140' 

0 

1 

2 

3 

4 

5 

0.630.650.670.690.710.730.750.770.790.81 

Ro ran 

No. of measurements 

DATA 

0.756 

0.694 

0.792 

0.722 

0.681 

0.633 

0.640 

0.727 

0.673 

0.770 

0.681 

0.646 

0.686 

0.644 

0.708 

0.749 

0.725 

0.702 

0.683 

0.649 

min: 0.633 max: 0.792 V-types: 2 

COMMENT
 

Sample contains approximately 20 rock fragments consisting of dirty, detrital-rich coal.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

63
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): N/A 

s.d.: N/A 

Edgar Guevara 

Texas CBM 

N/A 

3/13/2006 

cuttings 

2/26/2007 

P. Hackley 

Donnell No. 1 1240-1250' 

Donnell No. 1 1240-1250' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

min: 0.000 max: 0.000 V-types: 0 

COMMENT
 

Sample does not contain vitrinite.
 

U.S. Department of the Interior ICCP/SCAP-068/AB Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

64
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 12 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.66 

s.d.: 0.07 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

2/26/2007 

P. Hackley 

Donnell No. 1 1250-1260' 

Donnell No. 1 1250-1260' 

0 

1 

2 

3 

0.520.540.560.58

0.6

0.620.640.660.68

0.7

0.720.740.760.78 

Ro ran 

No. of measurements 

DATA 

0.584 

0.523 

0.736 

0.585 

0.705 

0.672 

0.635 

0.668 

0.721 

0.776 

0.611 

0.756 

min: 0.523 max: 0.776 V-types: 3 

COMMENT 

Sample consists of approximately 15 rock chips with fine dispersed vitrinite fragments on the order of 20-50 square 

microns in size. 

U.S. Department of the Interior ICCP/SCAP-068/AB Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

65
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 

s.d.: 

Edgar Guevara 

Texas CBM 

3/13/2006 

cuttings 

2/12/2007 

P.Hackley 

Donnell No. 1 1340-1350' 

Donnell No. 1 1340-1350' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

min: 0.000 max: 0.000 V-types: 0 

COMMENT 

Sample contains six rock fragments, none of which contain vitrinite suitable for measurement (one fragment contains 

finely comminuted, dispersed, poorly-polished vitrinite particles). Inertinite present in several fragments. 

U.S. Department of the Interior ICCP/SCAP-068/AB Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

66
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 3 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.78 

s.d.: 0.06 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

11/21/2006 

P. Hackley 

Donnell No. 1 1620-1630' 

Donnell No. 1 1620-1630' 

0 

1 

2 

0.690.710.730.750.770.790.810.830.85 

Ro ran 

No. of measurements 

DATA 

0.695 

0.835 

0.804 

min: 0.695 max: 0.835 V-types: 3 

COMMENT 

Sample contains four rock fragments, two of which do not contain vitrinite. One of these contains abundant dispersed 

inertinite. One of the vitrinite-containing particles is highly tarnished, not removed by detergent wiped vigorously with 

lens paper. Measured reflectance value should be considered suspect due to tarnishing. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

67
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 10 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.53 

s.d.: 0.08 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

3/12/2007 

P. Hackley 

Donnell No. 1 1630-1640' 

Donnell No. 1 1630-1640' 

0 

1 

2 

3 

0.4

0.420.440.460.48

0.5

0.520.540.560.58

0.6

0.620.640.660.68 

Ro ran 

No. of measurements 

DATA 

0.612 

0.547 

0.446 

0.506 

0.442 

0.498 

0.668 

0.596 

0.558 

0.404 

min: 0.404 max: 0.668 V-types: 3 

COMMENT 

Originally analyzed by Humble (see Appendix 2). Repolished and analyzed at USGS on 3/12/07. USGS value 

(preferred; listed in Table 1) generally is consistent with Humble value (0.45%); both determinations are lower than 

other nearby intervals in hole. Possible cavings contamination. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

68
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 16 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.78 

s.d.: 0.06 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

11/21/2006 

P. Hackley 

Donnell No. 1 1750-1760' 

Donnell No. 1 1750-1760' 

0 

1 

2 

3 

0.670.690.710.730.750.770.790.810.830.850.870.89 

Ro ran 

No. of measurements 

DATA 

0.743 

0.757 

0.832 

0.854 

0.820 

0.852 

0.837 

0.678 

0.712 

0.873 

0.703 

0.762 

0.731 

0.737 

0.761 

0.757 

min: 0.678 max: 0.873 V-types: 3 

COMMENT 

Contains approximately 15 rock fragments with dispersed vitrinite. Contains one fragment with abundant vitrinite 

reflecting in the range 0.5-0.6 % interpreted to be from caving. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

69
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 20 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.88 

s.d.: 0.06 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

2/27/2006 

P. Hackley 

Donnell No. 1 1930-1940' 

Donnell No. 1 1930-1940' 

0 

1 

2 

3 

0.750.770.790.810.830.850.870.890.910.930.950.970.991.011.03 

Ro ran 

No. of measurements 

DATA 

1.019 

0.822 

0.894 

0.757 

0.957 

0.919 

0.804 

0.846 

0.853 

0.853 

0.836 

0.864 

0.921 

0.997 

0.877 

0.826 

0.916 

0.901 

0.934 

0.816 

min: 0.757 max: 1.019 V-types: 4 

COMMENT
 

Sample contains oxidized? vitrinite, reflecting at 1.1 percent, as well as corpogelinite of approximately 1.1 

percent reflectance. Value of 0.88 percent is consistent with value of 0.86 percent (n=30) from 2350-2360 ft interval. 

Sample consists of 2 larger (7-10 mm) fragments and 8-10 smaller (<2 mm) fragments. 

U.S. Department of the Interior ICCP/SCAP-068/AB Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

70
Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 2 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.83 

s.d.: 0.05 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

3/5/2007 

P. Hackley 

Donnell No. 1 1940-1950' 

Donnell No. 1 1940-1950' 

0 

1 

SAMPLE INFORMATION 

2 

0.770.790.810.830.850.870.89 

Ro ran 

No. of measurements 

VITRINITE REFLECTANCE REPORT 

DATA 

0.887 

0.777 

min: 0.777 max: 0.887 V-types: 2 

COMMENT
 

Sample contains 4 small (<1 mm) rock fragments, two of which contain dispersed vitrinite and inertinite.
 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

71
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 15 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.71 

s.d.: 0.12 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

12/6/2006 

P. Hackley 

Donnell No. 1 2180-2190' 

Donnell No. 1 2180-2190' 

0 

1 

2 

0.530.550.570.590.610.630.650.670.690.710.730.750.770.790.810.830.850.870.890.910.93 

Ro ran 

No. of measurements 

DATA 

0.823 

0.891 

0.916 

0.736 

0.759 

0.859 

0.721 

0.683 

0.699 

0.538 

0.575 

0.664 

0.595 

0.702 

0.558 

min: 0.538 max: 0.916 V-types: 5 

COMMENT 

Sample consists of 3 larger (2-5 mm) rock fragments and 3-4 smaller (<1mm) fragments. Measured values are highly 

disparate, suggesting that not all are measured on indigenous vitrinite population. Nearby intervals in Donnell hole 

return measurements of 0.88 and 0.86%, suggesting that higher range values in this sample indicate in situ vitrinite 

maturation. However, lower reflecting particles are from same rock fragment - possibly suppressed in original source? 

Alternatively, could be bitumen particles. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

72
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 30 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.86 

s.d.: 0.06 

E. Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

8/3/2006 

P. Hackley 

Donnell No. 1 2350-2360' 

Donnell No. 1 2350-2360' 

0 

1 

2 

3 

4 

0.740.760.78

0.8

0.820.840.860.88

0.9

0.920.940.960.98 

Ro ran 

No. of measurements 

DATA 

0.885 

0.897 

0.757 

0.853 

0.860 

0.875 

0.927 

0.772 

0.812 

0.822 

0.745 

0.929 

0.887 

0.908 

0.920 

0.888 

0.817 

0.865 

0.804 

0.914 

0.979 

0.833 

0.842 

0.806 

0.875 

0.921 

0.904 

0.823 

0.793 

0.933 

min: 0.745 max: 0.979 V-types: 3 

COMMENT 

Sample contains approximately 25 rock fragments composed of oxidized detrovitrinite hosting liptinite and inertinite 

fragments. Some rock fragments contain dispersed vitrinite in mineral matter. Secretinite abundant. Mean value is 

consistent with measurement by Humble on Morrison No. 1 2030-2040'. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

73
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 1 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.79 

s.d.: 0.00 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

cuttings 

2/12/2007 

P. Hackley 

Donnell No. 1 2360-2370' 

Donnell No. 1 2360-2370' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

0.794 

min: 0.794 max: 0.794 V-types: 1 

COMMENT 

Sample contains 4 rock fragments, one of which contains dispersed vitrinite and inertinite fragments. 0.794 is sole 

reflectance value determined. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

74
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 24 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): N/A 

s.d.: N/A 

Edgar Guevara 

Texas CBM 

oxidized vitrinite 

7/1/2005 

well cuttings 

1/26/2006 

P.Hackley 

Rasmussen No. 1 940-950' 

Rasmussen No. 1 940-950' 

0 

1 

2 

3 

4 

0.670.690.710.730.750.770.790.810.830.850.870.890.910.930.950.970.991.01 

Ro ran 

No. of measurements 

DATA 

0.817 

0.739 

0.847 

0.964 

0.852 

0.985 

0.995 

0.671 

0.730 

0.907 

0.808 

0.918 

0.815 

0.929 

0.754 

0.892 

0.890 

0.894 

0.978 

0.899 

0.763 

0.788 

0.816 

0.844 

min: 0.671 max: 0.995 V-types: 4 

COMMENT 

Carbonaceous shale. Sample comprised of approximately 20 rock fragments. Contains dispersed oxidized vitrinite 

and inertinite in mineral-matter groundmass, fine-grained sandstone with high polishing relief. Several reflectance 

measurements are in range 0.6-1.1%. Lowest measured value (0.67 %) accepted as representing approximate in situ 

maturity. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

75
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 

Edgar Guevara 

Texas CBM 

7/1/2005 

well cuttings 

1/27/2006 

P.Hackley 

Rasmussen No. 1 1210-1220' 

Rasmussen No. 1 1210-1220' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

min: 0.000 max: 0.000 V-types: 0 

COMMENT
 

Sample does not contain vitrinite.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

76
Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): N/A 

s.d.: N/A 

Edgar Guevara 

Texas CBM 

N/A 

7/1/2005 

well cuttings 

3/3/2006 

P. Hackley 

Rasmussen No. 1 12

SAMPLE INFORMATION 

90-1300' 

Rasmussen No. 1 1290-1300' 

0 

1 

2 

Ro ran 

No. of measurements 

VITRINITE REFLECTANCE REPORT 

DATA 

min: 0.000 max: 0.000 V-types: 0 

COMMENT
 

Sample is one cutting (1-2 other cuttings lost during polishing of briquette), which does not contain vitrinite.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

77
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): N/A 

s.d.: N/A 

Edgar Guevara 

Texas CBM 

oxidized vitrinite 

7/1/2005 

well cuttings 

1/27/2006 

P.Hackley 

Rasmussen No. 1 1500-1510' 

Rasmussen No. 1 1500-1510' 

0 

1 

2 

3 

4 

5 

0.58

0.6

0.620.640.660.68

0.7

0.720.740.760.78

0.8

0.820.840.860.88

0.9

0.920.940.960.9811.021.041.06 

Ro ran 

No. of measurements 

DATA 

0.628 0.914 0.794 0.840 0.751 

0.609 0.911 0.771 0.806 0.744 

0.787 0.741 0.580 0.792 0.866 

0.783 0.767 0.581 0.778 0.811 

0.793 0.866 0.677 0.804 0.828 

0.874 0.852 0.923 0.929 0.768 

0.884 1.026 0.785 0.823 0.837 

0.916 0.814 0.830 0.789 0.646 

0.651 0.698 0.699 0.706 0.703 

1.047 1.015 0.799 0.849 0.854 

min: 0.580 max: 1.047 V-types: 6 

COMMENT 

Carbonaceous shale. Sample comprised of approximately 40 rock fragments. Contains organic matter dispersed and 

occurring in situ in mineral-matter groundmass. Contains abundant obvious fusinite; dispersed inertodetrinite 

fragments (oxidized vitrinite) in sandstone. One tri-maceral rock fragment with in situ vitrinite stringers give reflectance 

measurements of 0.5-0.6%, probable reflecting actual thermal maturity. Higher reflectance values mostly collected on 

dispersed oxidized vitrinite fragments. Two lowest measured values (0.58 %) interpreted to reflect in situ maturity. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

78
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 4 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): N/A 

s.d.: N/A 

Edgar Guevara 

Texas CBM 

telovitrinite 

7/1/2005 

well cuttings 

3/3/2006 

P. Hackley 

Rasmussen No. 1 1700-1710' 

Rasmussen No. 1 1700-1710' 

0 

1 

2 

0.520.540.560.58

0.6

0.620.640.660.68

0.7

0.720.740.760.78

0.8

Ro ran 

No. of measurements 

0.820.84

Mor 

DATA 

0.520 

0.549 

0.844 

0.538 

min: 0.520 max: 0.844 V-types: 4 

COMMENT 

Sample contains 8 cuttings, none of which contain vitrinite suitable for analysis. Measurement of 0.844 % is 

consistent with values from oxidized vitrinite other cuttings samples from Rasmussen No. 1. In situ maturity is 

interpreted to be on the order of 0.52 % consistent with low values measured in other Rasmussen samples. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

79
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.48 

s.d.: 0.08 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

3/1/2006 

P. Hackley 

Scott No. 1 610-620' 

Scott No. 1 610-620' 

0 

1 

2 

3 

4 

5 

6 

0.3

0.320.340.360.38

0.4

0.420.440.460.48

0.5

0.520.540.560.58

0.6 

Ro ran 

No. of measurements 

DATA 

0.364 

0.441 

0.352 

0.400 

0.380 

0.453 

0.461 

0.455 

0.515 

0.540 

0.340 

0.484 

0.531 

0.454 

0.412 

0.564 

0.530 

0.579 

0.503 

0.522 

0.546 

0.562 

0.488 

0.517 

0.477 

0.440 

0.514 

0.510 

0.573 

0.365 

0.346 

0.377 

0.541 

0.598 

0.553 

0.555 

0.512 

0.557 

0.555 

0.533 

0.458 

0.548 

0.371 

0.306 

0.430 

0.556 

0.363 

0.542 

0.579 

0.592 

min: 0.306 max: 0.598 V-types: 3 

COMMENT
 

Cuttings contain abundant tri-maceral grains. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

80
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 30 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.46 

s.d.: 0.09 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

3/22/2006 

P. Hackley 

Scott No. 630-640' 

Scott No. 630-640' 

0 

1 

2 

3 

4 

0.290.310.330.350.370.390.410.430.450.470.490.510.530.550.570.590.610.63 

Ro ran 

No. of measurements 

DATA 

0.414 

0.537 

0.542 

0.534 

0.361 

0.445 

0.405 

0.507 

0.604 

0.410 

0.332 

0.616 

0.528 

0.492 

0.582 

0.557 

0.361 

0.414 

0.416 

0.326 

0.404 

0.443 

0.298 

0.339 

0.449 

0.428 

0.527 

0.604 

0.499 

0.509 

min: 0.298 max: 0.616 V-types: 5 

COMMENT
 

Carbonaceous shale with dispersed and in situ vitrinite.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

81
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): N/A 

s.d.: N/A 

Edgar Guevara 

Texas CBM 

N/A 

7/1/2005 

well cuttings 

3/17/2006 

P. Hackley 

Scott No. 1 690-700' 

Scott No. 1 690-700' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

min: 0.000 max: 0.000 V-types: 0 

COMMENT
 

Carbonaceous shale. Sample contains approximately 10 rock fragments, some of which contain dispersed inertinite. 

No vitrinite is present in sample.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

82
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 1 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.45 

s.d.: N/A 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

3/21/2006 

P.Hackley 

Scott No. 1 780-790' 

Scott No. 1 780-790' 

0 

0.2 

0.4 

0.6 

0.8 

1 

1.2 

Ro ran 

No. of measurements 

DATA 

0.451 

min: 0.451 max: 0.451 V-types: 1 

COMMENT 

Sample consists of 5 rock fragments, which contain abundant dispersed inertinite. Reflectance measurement (0.45 

%) of the 1 dispersed vitrinite particle present is consistent with mean measurements (0.48-0.57 %) from the same 

general interval of the well (610-820' depth interval). 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

83
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.54 

s.d.: 0.04 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

2/23/2006 

P. Hackley 

Scott No. 1 790-800' 

Scott No. 1 790-800' 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

0.450.470.490.510.530.550.570.590.610.630.650.67 

Ro ran 

No. of measurements 

DATA 

0.549 

0.554 

0.507 

0.458 

0.505 

0.495 

0.517 

0.509 

0.486 

0.512 

0.521 

0.562 

0.570 

0.532 

0.567 

0.531 

0.564 

0.541 

0.548 

0.611 

0.517 

0.463 

0.659 

0.556 

0.568 

0.542 

0.561 

0.492 

0.550 

0.556 

0.571 

0.629 

0.616 

0.509 

0.473 

0.507 

0.515 

0.532 

0.491 

0.511 

0.522 

0.541 

0.561 

0.564 

0.526 

0.493 

0.479 

0.533 

0.537 

0.541 

min: 0.458 max: 0.659 V-types: 3 

COMMENT
 

Cuttings contain abundant tri-maceral grains. Oxidation rims indicate post-sampling desiccation.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

84
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.57 

s.d.: 0.06 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

2/25/2006 

P. Hackley 

Scott No. 1 810-820' 

Scott No. 1 810-820' 

0 

1 

2 

3 

4 

5 

6 

7 

8 

0.450.470.490.510.530.550.570.590.610.630.650.670.690.710.73 

Ro ran 

No. of measurements 

DATA 

0.506 

0.559 

0.458 

0.569 

0.628 

0.630 

0.631 

0.531 

0.559 

0.626 

0.474 

0.635 

0.492 

0.620 

0.640 

0.551 

0.554 

0.712 

0.562 

0.555 

0.451 

0.646 

0.574 

0.576 

0.558 

0.486 

0.531 

0.647 

0.615 

0.592 

0.527 

0.504 

0.707 

0.585 

0.566 

0.599 

0.456 

0.614 

0.619 

0.571 

0.556 

0.484 

0.505 

0.593 

0.616 

0.605 

0.653 

0.617 

0.618 

0.571 

min: 0.451 max: 0.712 V-types: 4 

COMMENT 

Coal. Contains abundant organic material. Very similar in character to Scott No. 1 790-800'. Evidence of postsampling desiccation and oxidation. Some radioactive? halos around heavy minerals. Frequency of coal fragments in 

cuttings suggests a well-developed coal bed is present in this interval. Sample contains approximately 25 coal and 

rock fragments. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

85
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): N/A 

s.d.: N/A 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

3/17/2006 

P. Hackley 

Scott No. 1 850-860' 

Scott No. 1 850-860' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

min: 0.000 max: 0.000 V-types: 0 

COMMENT
 

Poor polish. Some vitrinite is present but sample needs to be repolished before analysis.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

86
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.59 

s.d.: 0.07 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

2/25/2006 

P.Hackley 

Scott No. 1 1610-1620' 

Scott No. 1 1610-1620' 

0 

1 

2 

3 

4 

5 

6 

0.4

0.420.440.460.48

0.5

0.520.540.560.58

0.6

0.620.640.660.68

0.7

0.720.740.760.78

0.8

0.82 

Ro ran 

No. of measurements 

DATA 

0.559 

0.448 

0.811 

0.737 

0.628 

0.564 

0.539 

0.529 

0.513 

0.641 

0.646 

0.646 

0.602 

0.586 

0.612 

0.647 

0.615 

0.603 

0.466 

0.516 

0.661 

0.577 

0.520 

0.642 

0.621 

0.551 

0.697 

0.400 

0.626 

0.627 

0.547 

0.604 

0.593 

0.562 

0.613 

0.456 

0.543 

0.528 

0.653 

0.505 

0.662 

0.558 

0.575 

0.579 

0.572 

0.547 

0.611 

0.514 

0.629 

0.580 

min: 0.400 max: 0.811 V-types: 5 

COMMENT
 

Abundant tri-maceral organic material present in cuttings. Excellent secretinite examples.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

87
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 41 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.60 

s.d.: 0.06 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

3/1/2006 

P. Hackley 

Scott No. 1 1850-1860' 

Scott No. 1 1850-1860' 

0 

1 

2 

3 

4 

5 

6 

7 

8 

0.410.430.450.470.490.510.530.550.570.590.610.630.650.670.690.710.73 

Ro ran 

No. of measurements 

DATA 

0.633 

0.573 

0.581 

0.593 

0.549 

0.718 

0.552 

0.598 

0.586 

0.574 

0.580 

0.632 

0.570 

0.600 

0.579 

0.616 

0.579 

0.572 

0.621 

0.621 

0.503 

0.586 

0.418 

0.627 

0.608 

0.646 

0.624 

0.435 

0.628 

0.668 

0.561 

0.664 

0.645 

0.639 

0.553 

0.573 

0.561 

0.634 

0.604 

0.614 

0.721 

min: 0.418 max: 0.721 V-types: 4 

COMMENT
 

Cuttings contain dispersed vitrinite and inertinite fragments, and scattered in-situ vitrinite stringers.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

88
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 12 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.59 

s.d.: 0.06 

Edgar Guevara 

Texas CBM 

telovitrinite 

7/1/2005 

well cuttings 

3/21/2006 

P. Hackley 

Scott No. 1 1870-1880' 

Scott No. 1 1870-1880' 

0 

1 

2 

3 

0.5

0.520.540.560.58

0.6

0.620.640.660.68

0.7 

Ro ran 

No. of measurements 

DATA 

0.601 

0.578 

0.569 

0.519 

0.553 

0.564 

0.667 

0.699 

0.667 

0.646 

0.503 

0.520 

min: 0.503 max: 0.699 V-types: 2 

COMMENT 

Sample contains approximately 20 rock fragments with dispersed vitrinite and inertinite particles. Result is consistent 

with other analysis from same interval of well. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

89
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 22 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.39 

s.d.: 0.05 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

3/23/2006 

P. Hackley 

Coleman No. 1 580-590' 

Coleman No. 1 580-590' 

0 

1 

2 

3 

4 

5 

0.320.340.360.38

0.4

0.420.440.460.48

0.5

0.52 

Ro ran 

No. of measurements 

DATA 

0.341 

0.422 

0.351 

0.387 

0.373 

0.328 

0.351 

0.354 

0.362 

0.390 

0.429 

0.375 

0.511 

0.353 

0.381 

0.472 

0.382 

0.425 

0.500 

0.398 

0.377 

0.393 

min: 0.328 max: 0.511 V-types: 3 

COMMENT
 

Sample comprised of 4 carbonaceous shale rock fragments with dispersed and in situ vitrinite.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

90
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 23 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.36 

s.d.: 0.06 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

3/27/2006 

P. Hackley 

Coleman No. 1 600-610' 

Coleman No. 1 600-610' 

0 

1 

2 

3 

4 

5 

0.260.28

0.3

0.320.340.360.38

0.4

0.420.440.460.48 

Ro ran 

No. of measurements 

DATA 

0.366 

0.304 

0.304 

0.323 

0.382 

0.332 

0.322 

0.336 

0.461 

0.420 

0.472 

0.382 

0.478 

0.306 

0.349 

0.325 

0.307 

0.377 

0.269 

0.298 

0.354 

0.393 

0.370 

min: 0.269 max: 0.478 V-types: 3 

COMMENT 

Sample comprised of 3 rock fragments - 2 carbonaceous shale fragments with dispersed vitrinite and inertinite and a 

third fragment which is epigenetic pyrite. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

91
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 40 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.51 

s.d.: 0.10 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

2/23/2006 

P.Hackley 

Coleman No. 1 830-840' 

Coleman No. 1 830-840' 

0 

1 

2 

3 

4 

5 

6 

7 

0.340.360.38

0.4

0.420.440.460.48

0.5

0.520.540.560.58

0.6

0.620.640.660.68

0.7

0.720.740.76 

Ro ran 

No. of measurements 

DATA 

0.427 

0.593 

0.479 

0.465 

0.501 

0.635 

0.416 

0.535 

0.366 

0.411 

0.472 

0.431 

0.411 

0.382 

0.503 

0.570 

0.588 

0.581 

0.353 

0.493 

0.534 

0.507 

0.541 

0.499 

0.510 

0.488 

0.533 

0.344 

0.480 

0.712 

0.750 

0.725 

0.496 

0.472 

0.471 

0.567 

0.435 

0.474 

0.692 

0.712 

min: 0.344 max: 0.750 V-types: 5 

COMMENT
 

Carbonaceous shale. Dispersed vitrinite-inertinite in mineral matter.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

92
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 28 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.54 

s.d.: 0.10 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

2/22/2006 

P.Hackley 

Coleman No. 1 910-920' 

Coleman No. 1 910-920' 

0 

1 

2 

3 

4 

5 

0.360.38

0.4

0.420.440.460.48

0.5

0.520.540.560.58

0.6

0.620.640.660.68 

Ro ran 

No. of measurements 

DATA 

0.485 

0.477 

0.368 

0.402 

0.389 

0.457 

0.625 

0.508 

0.511 

0.660 

0.604 

0.625 

0.627 

0.680 

0.590 

0.471 

0.491 

0.625 

0.408 

0.421 

0.671 

0.668 

0.415 

0.509 

0.657 

0.614 

0.633 

0.523 

min: 0.368 max: 0.680 V-types: 4 

COMMENT 

Carbonaceous shale. Dispersed organic matter in mineral groundmass. Sample comprised of 4 cuttings, 1 of which 

(largest) contains all acceptable vitrinite. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

93
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): N/A 

s.d.: N/A 

Edgar Guevara 

Texas CBM 

N/A 

7/1/2005 

well cuttings 

3/22/2006 

P.Hackley 

Coleman No. 1 1010-1020' 

Coleman No. 1 1010-1020' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

min: 0.000 max: 0.000 V-types: 0 

COMMENT
 

Sample consists of 3 small rock fragments which do not contain vitrinite. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

94
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): N/A 

s.d.: N/A 

Edgar Guevara 

Texas CBM 

N/A 

7/1/2005 

well cuttings 

3/16/2006 

P. Hackley 

Coleman No. 1 1040-1050' 

Coleman No. 1 1040-1050' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

min: 0.000 max: 0.000 V-types: 0 

COMMENT
 

Sample contains 2 rock fragments, neither of which contains vitrinite.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

95
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): N/A 

s.d.: N/A 

Edgar Guevara 

Texas CBM 

N/A 

7/1/2005 

well cuttings 

3/23/2006 

P. Hackley 

Coleman No. 1 1050-1060' 

Coleman No. 1 1050-1060' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

min: 0.000 max: 0.000 V-types: 0 

COMMENT 

Sample does not contain vitrinite. Sample comprised of 10-15 rock fragments, of which <10 contain dispersed 

inertinite. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

96
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 1 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.46 

s.d.: N/A 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

3/16/2006 

P. Hackley 

Coleman No. 1 1090-1100' 

Coleman No. 1 1090-1100' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

0.455 

min: 0.455 max: 0.455 V-types: 1 

COMMENT 

Sample contains 3-5 rock fragments. One contains dispersed inertinite. Measurement of 0.455 is on an isolated 

vitrinite? fragment. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

97
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): N/A 

s.d.: N/A 

Edgar Guevara 

Texas CBM 

N/A 

7/1/2005 

well cuttings 

3/27/2006 

P. Hackley 

Coleman No. 1 1150-1160' 

Coleman No. 1 1150-1160' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

min: 0.000 max: 0.000 V-types: 0 

COMMENT 

Sample does not contain vitrinite. Dispersed inertinite present in 1 of approximately 10 rock fragment, some of which 

are red indicating oxidation. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

98
SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 5 <ASTM/ISO Standards 

maceral type: 

Edgar Guevara 

Texas CBM 

N/A 

7/1/2005 

well cuttings 

2/8/2006 

P. Hackley 

Coleman No. 1 1280-1290' 

Coleman No. 1 1280-1290' 

0 

1 

2 

Ro ran 

No. of measurements 

VITRINITE REFLECTANCE REPORT 

DATA 

1.454 

1.612 

1.656 

0.961 

1.416 

min: 0.961 max: 1.656 V-types: 8 

COMMENT 

Sample consists of only 5 chips of rock, none of which contain vitrinite. Reflectance measurements were determined 

on fusinitized material dispersed in mineral matter. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

99
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 40 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.46 

s.d.: 0.06 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

3/23/2006 

P. Hackley 

Coleman No. 1 1390-1400' 

Coleman No. 1 1390-1400' 

0 

1 

2 

3 

4 

5 

6 

0.370.390.410.430.450.470.490.510.530.550.570.590.610.63 

Ro ran 

No. of measurements 

DATA 

0.493 

0.463 

0.617 

0.525 

0.462 

0.542 

0.416 

0.450 

0.437 

0.438 

0.534 

0.501 

0.404 

0.392 

0.386 

0.459 

0.567 

0.578 

0.399 

0.467 

0.581 

0.433 

0.474 

0.400 

0.439 

0.500 

0.437 

0.381 

0.482 

0.504 

0.379 

0.401 

0.393 

0.372 

0.477 

0.463 

0.397 

0.505 

0.422 

0.420 

min: 0.372 max: 0.617 V-types: 4 

COMMENT 

Carbonaceous shale. Contains dispersed and in situ vitrinite in mineral matter. Sample is approximately 15 rock 

fragments. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

100
SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 16 <ASTM/ISO Standards 

maceral type: 

Edgar Guevara 

Texas CBM 

N/A 

7/1/2005 

well cuttings 

2/8/2006 

P.Hackley 

Coleman No. 1 1500-1510' 

Coleman No. 1 1500-1510' 

0 

1 

2 

Ro ran 

No. of measurements 

VITRINITE REFLECTANCE REPORT 

DATA 

1.314 1.095 

1.435 1.329 

1.706 0.467 

1.567 0.464 

1.577 0.723 

2.285 0.698 

1.410 

1.684 

0.865 

1.817 

min: 0.464 max: 2.285 V-types: 19 

COMMENT 

Carbonaceous shale. Sample contains seven rock chips. Most of organic material is fusinite. Reflectance values 

0.698 and 0.723 (last 2 measurements) probably are closest to actual in situ thermal maturity (~0.7). 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

101
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 12 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.56 

s.d.: 0.04 

Edgar Guevara 

Texas CBM 

telovitrinite 

7/1/2005 

well cuttings 

3/22/2006 

P. Hackley 

Coleman No. 1 1590-1600' 

Coleman No. 1 1590-1600' 

0 

1 

2 

3 

0.490.510.530.550.570.590.610.630.650.67 

Ro ran 

No. of measurements 

DATA 

0.562 

0.596 

0.537 

0.491 

0.583 

0.517 

0.565 

0.556 

0.548 

0.599 

0.669 

0.533 

min: 0.491 max: 0.669 V-types: 3 

COMMENT 

Poor preparation - sample dispersed to edges of briquette. Rock fragments contain dispersed inertinite and vitrinite 

adequate for analysis. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

102
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 23 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.61 

s.d.: 0.08 

Edgar Guevara 

Texas CBM 

telovitrinite 

7/1/2005 

well cuttings 

3/22/2006 

P. Hackley 

Coleman No. 1 1600-1610' 

Coleman No. 1 1600-1610' 

0 

1 

2 

3 

4 

5 

0.410.430.450.470.490.510.530.550.570.590.610.630.650.670.690.710.730.75 

Ro ran 

No. of measurements 

DATA 

0.647 

0.615 

0.645 

0.671 

0.643 

0.527 

0.655 

0.537 

0.573 

0.601 

0.566 

0.669 

0.663 

0.462 

0.741 

0.674 

0.414 

0.647 

0.637 

0.740 

0.577 

0.652 

0.537 

min: 0.414 max: 0.741 V-types: 4 

COMMENT
 

Sample contains approximately 10 carbonaceous shale rock fragments with dispersed and in situ vitrinite. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

103
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.54 

s.d.: 0.07 

Edgar Guevara 

Texas CBM 

telovitrinite 

7/1/2005 

well cuttings 

3/22/2006 

P. Hackley 

Coleman No. 1 1630-1640' 

Coleman No. 1 1630-1640' 

0 

1 

2 

3 

4 

5 

0.360.38

0.4

0.420.440.460.48

0.5

0.520.540.560.58

0.6

0.620.640.660.68

0.7 

Ro ran 

No. of measurements 

DATA 

0.549 

0.525 

0.568 

0.554 

0.499 

0.362 

0.630 

0.573 

0.483 

0.649 

0.662 

0.545 

0.599 

0.583 

0.526 

0.496 

0.472 

0.577 

0.616 

0.476 

0.506 

0.597 

0.622 

0.593 

0.447 

0.624 

0.497 

0.555 

0.386 

0.441 

0.558 

0.393 

0.392 

0.688 

0.577 

0.531 

0.582 

0.592 

0.581 

0.539 

0.479 

0.486 

0.462 

0.562 

0.534 

0.546 

0.548 

0.498 

0.611 

0.562 

min: 0.362 max: 0.688 V-types: 4 

COMMENT
 

Sample comprised of approximately 20 carbonaceous shale rock fragments with abundant in situ vitrinite.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

104
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 34 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.53 

s.d.: 0.07 

Edgar Guevara 

Texas CBM 

telovitrinite 

7/1/2005 

well cuttings 

3/23/2006 

P. Hackley 

Coleman No. 1 1710-1720' 

Coleman No. 1 1710-1720' 

0 

1 

2 

3 

4 

0.330.350.370.390.410.430.450.470.490.510.530.550.570.590.610.630.65 

Ro ran 

No. of measurements 

DATA 

0.530 

0.591 

0.529 

0.649 

0.585 

0.571 

0.597 

0.535 

0.589 

0.517 

0.496 

0.492 

0.604 

0.466 

0.606 

0.565 

0.471 

0.527 

0.457 

0.558 

0.552 

0.601 

0.483 

0.645 

0.599 

0.579 

0.612 

0.439 

0.332 

0.431 

0.489 

0.403 

0.557 

0.513 

min: 0.332 max: 0.649 V-types: 4 

COMMENT
 

Poor polish. Sample comprised of <10 carbonaceous shale rock fragments containing in situ and dispersed vitrinite.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

105
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 17 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.61 

s.d.: 0.05 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

3/16/2006 

P. Hackley 

Coleman No. 1 1780-1790' 

Coleman No. 1 1780-1790' 

0 

1 

2 

3 

4 

0.460.48

0.5

0.520.540.560.58

0.6

0.620.640.660.68

0.7 

Ro ran 

No. of measurements 

DATA 

0.618 

0.621 

0.636 

0.663 

0.674 

0.564 

0.615 

0.624 

0.601 

0.465 

0.596 

0.587 

0.504 

0.686 

0.586 

0.636 

0.623 

min: 0.465 max: 0.686 V-types: 3 

COMMENT 

Carbonaceous shale. Sample comprised of approximately 20 fragments, of which 1 (the largest) contains in situ 

vitrinite stringers as well as tri-maceral layers. All measurements are on this fragment. All other fragments are mineral 

matter. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

106
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 21 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.64 

s.d.: 0.07 

Edgar Guevara 

Texas CBM 

telovitrinite 

7/1/2005 

well cuttings 

3/17/2006 

P. Hackley 

Coleman No. 1 1810-1820' 

Coleman No. 1 1810-1820' 

0 

1 

2 

3 

4 

0.5

0.520.540.560.58

0.6

0.620.640.660.68

0.7

0.720.74 

Ro ran 

No. of measurements 

DATA 

0.700 

0.700 

0.712 

0.709 

0.638 

0.568 

0.611 

0.586 

0.507 

0.501 

0.622 

0.621 

0.682 

0.562 

0.605 

0.730 

0.593 

0.693 

0.711 

0.602 

0.704 

min: 0.501 max: 0.730 V-types: 3 

COMMENT
 

Carbonaceous shale. Sample is approximately 15 rock fragments containing scattered vitrinite and inertinite. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

107
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 35 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.60 

s.d.: 0.11 

Edgar Guevara 

Texas CBM 

telovitrinite 

7/1/2005 

well cuttings 

2/9/2006 

P. Hackley 

Coleman No. 1 1840-1850' 

Coleman No. 1 1840-1850' 

0 

1 

2 

3 

4 

0.370.390.410.430.450.470.490.510.530.550.570.590.610.630.650.670.690.710.730.750.77 

Ro ran 

No. of measurements 

DATA 

0.375 

0.641 

0.594 

0.675 

0.486 

0.709 

0.594 

0.694 

0.661 

0.702 

0.699 

0.651 

0.705 

0.765 

0.729 

0.684 

0.743 

0.743 

0.397 

0.469 

0.614 

0.500 

0.549 

0.647 

0.609 

0.678 

0.654 

0.584 

0.465 

0.431 

0.419 

0.548 

0.578 

0.487 

0.584 

min: 0.375 max: 0.765 V-types: 5 

COMMENT
 

Carbonaceous shale. Dispersed organic material in mineral matter. Some in-situ organic (vitrinite) layers.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

108
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.46 

s.d.: 0.05 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

3/27/2006 

P. Hackley 

Schreiber No. 1 580-590' 

Schreiber No. 1 580-590' 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

0.360.38

0.4

0.420.440.460.48

0.5

0.520.540.560.58

0.6 

Ro ran 

No. of measurements 

DATA 

0.417 

0.443 

0.461 

0.498 

0.447 

0.428 

0.466 

0.471 

0.536 

0.536 

0.382 

0.435 

0.462 

0.516 

0.537 

0.378 

0.418 

0.421 

0.473 

0.587 

0.587 

0.464 

0.483 

0.449 

0.406 

0.557 

0.449 

0.465 

0.493 

0.385 

0.442 

0.431 

0.375 

0.364 

0.486 

0.443 

0.490 

0.461 

0.443 

0.406 

0.461 

0.455 

0.464 

0.441 

0.476 

0.471 

0.489 

0.401 

0.510 

0.454 

min: 0.364 max: 0.587 V-types: 3 

COMMENT 

Carbonaceous shale. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

109
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 60 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.42 

s.d.: 0.09 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

1/30/2006 

P. Hackley 

Schrieber No. 1 630-640' 

Schrieber No. 1 630-640' 

0 

1 

2 

3 

4 

0.28

0.3

0.320.340.360.38

0.4

0.420.440.460.48

0.5

0.520.540.560.58

0.6

0.62 

Ro ran 

No. of measurements 

DATA 

0.519 

0.516 

0.451 

0.610 

0.397 

0.572 

0.539 

0.371 

0.473 

0.587 

0.437 

0.495 

0.412 

0.554 

0.586 

0.296 

0.405 

0.281 

0.540 

0.346 

0.505 

0.310 

0.566 

0.385 

0.286 

0.318 

0.474 

0.438 

0.358 

0.354 

0.334 

0.335 

0.535 

0.418 

0.463 

0.306 

0.333 

0.576 

0.297 

0.319 

0.399 0.417 

0.362 0.459 

0.416 0.365 

0.425 0.354 

0.385 0.525 

0.321 0.494 

0.313 0.386 

0.353 0.347 

0.481 0.590 

0.426 0.375 

min: 0.281 max: 0.610 V-types: 5 

COMMENT
 

Organic material appears very similar to 580-590' sample.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

110
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 13 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.42 

s.d.: 0.09 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

2/27/2006 

P. Hackley 

Schreiber No. 1 870-880' 

Schreiber No. 1 870-880' 

0 

1 

2 

3 

0.320.340.360.38

0.4

0.420.440.460.48

0.5

0.520.540.560.58

0.6

0.620.640.66 

Ro ran 

No. of measurements 

DATA 

0.434 

0.372 

0.348 

0.384 

0.388 

0.566 

0.360 

0.379 

0.641 

0.526 

0.321 

0.337 

0.415 

min: 0.321 max: 0.641 V-types: 4 

COMMENT
 

Sample contains approximately 10 cuttings, of which only 1 contains vitrinite. Others contain inertinite (variety fusinite) 

or mineral matter.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

111
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 12 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.45 

s.d.: 0.08 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

2/27/2006 

P. Hackley 

Schreiber No. 1 930-940' 

Schreiber No. 1 930-940' 

0 

1 

2 

3 

0.330.350.370.390.410.430.450.470.490.510.530.550.570.59 

Ro ran 

No. of measurements 

DATA 

0.387 

0.523 

0.397 

0.393 

0.339 

0.477 

0.410 

0.445 

0.520 

0.582 

0.574 

0.379 

min: 0.339 max: 0.582 V-types: 3 

COMMENT
 

Most of organic material is inertinite (variety fusinite).
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

112
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 <ASTM/ISO Standards 

Edgar Guevara 

Texas CBM 

7/1/2005 

well cuttings 

2/23/2006 

P. Hackley 

Schreiber No. 1 1070-1080' 

Schreiber No. 1 1070-1080' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

min: 0.000 max: 0.000 V-types: 0 

COMMENT
 

All organic material in sample appears to be inertinite.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

113
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 17 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.50 

s.d.: 0.06 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

2/27/2006 

P.Hackley 

Schreiber No. 1 1110-1120' 

Schreiber No. 1 1110-1120' 

0 

1 

2 

3 

4 

0.370.390.410.430.450.470.490.510.530.550.570.59 

Ro ran 

No. of measurements 

DATA 

0.421 

0.477 

0.406 

0.480 

0.492 

0.544 

0.588 

0.527 

0.481 

0.545 

0.487 

0.556 

0.531 

0.542 

0.535 

0.371 

0.452 

min: 0.371 max: 0.588 V-types: 3 

COMMENT 

Result (0.50%) is higher than samples from deeper in well, possibly indicating diagenetic oxidation of vitrinite, or 

caving in deeper samples. Instrument calibrated pre-, and post-analysis. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

114
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 41 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.48 

s.d.: 0.05 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

3/16/2006 

P. Hackley 

Schreiber No. 1 1440-1450' 

Schreiber No. 1 1440-1450' 

0 

1 

2 

3 

4 

5 

6 

0.360.38

0.4

0.420.440.460.48

0.5

0.520.540.560.58

0.6

0.62 

Ro ran 

No. of measurements 

DATA 

0.463 

0.454 

0.485 

0.431 

0.516 

0.492 

0.458 

0.519 

0.426 

0.490 

0.491 

0.508 

0.511 

0.420 

0.538 

0.565 

0.407 

0.473 

0.473 

0.494 

0.536 

0.538 

0.365 

0.505 

0.476 

0.479 

0.606 

0.437 

0.395 

0.501 

0.407 

0.404 

0.492 

0.485 

0.454 

0.398 

0.437 

0.453 

0.534 

0.534 

0.472 

min: 0.365 max: 0.606 V-types: 4 

COMMENT 

Carbonaceous shale. High polishing relief. Dispersed and in situ vitrinite in mineral matter. Several fragments of 0.6-

0.7% reflectance telovitrinite are present from a higher than in situ rank coal. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

115
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.42 

s.d.: 0.08 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

1/30/2006 

P.Hackley 

Schreiber No. 1 1490-1500' 

Schreiber No. 1 1490-1500' 

0 

1 

2 

3 

4 

5 

0.290.310.330.350.370.390.410.430.450.470.490.510.530.550.57 

Ro ran 

No. of measurements 

DATA 

0.500 

0.526 

0.503 

0.523 

0.541 

0.465 

0.499 

0.493 

0.443 

0.522 

0.399 

0.406 

0.519 

0.556 

0.414 

0.516 

0.544 

0.371 

0.396 

0.330 

0.337 

0.309 

0.338 

0.385 

0.384 

0.368 

0.482 

0.461 

0.319 

0.299 

0.367 

0.476 

0.424 

0.524 

0.445 

0.372 

0.343 

0.557 

0.410 

0.327 

0.328 

0.499 

0.305 

0.360 

0.364 

0.423 

0.406 

0.356 

0.362 

0.416 

min: 0.299 max: 0.557 V-types: 4 

COMMENT 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

116
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 38 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.44 

s.d.: 0.08 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

1/30/2006 

P. Hackley 

Schrieber No. 1 1540-1550' 

Schrieber No. 1 1540-1550' 

0 

1 

2 

3 

4 

5 

0.260.28

0.3

0.320.340.360.38

0.4

0.420.440.460.48

0.5

0.520.540.560.58

0.6 

Ro ran 

No. of measurements 

DATA 

0.260 

0.565 

0.350 

0.329 

0.280 

0.356 

0.460 

0.464 

0.455 

0.398 

0.520 

0.389 

0.437 

0.508 

0.472 

0.484 

0.438 

0.432 

0.585 

0.445 

0.505 

0.393 

0.422 

0.409 

0.368 

0.464 

0.353 

0.411 

0.393 

0.473 

0.587 

0.526 

0.500 

0.562 

0.385 

0.460 

0.393 

0.413 

min: 0.260 max: 0.587 V-types: 4 

COMMENT 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

117
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 36 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.53 

s.d.: 0.06 

Edgar Guevara 

Texas CBM 

telovitrinite 

7/1/2005 

well cuttings 

3/17/2006 

P. Hackley 

Schreiber No. 1 1710-1720' 

Schreiber No. 1 1710-1720' 

0 

1 

2 

3 

4 

5 

6 

7 

0.390.410.430.450.470.490.510.530.550.570.590.610.63 

Ro ran 

No. of measurements 

DATA 

0.517 

0.581 

0.562 

0.600 

0.525 

0.526 

0.573 

0.575 

0.603 

0.529 

0.419 

0.473 

0.500 

0.545 

0.577 

0.552 

0.511 

0.449 

0.530 

0.522 

0.551 

0.455 

0.628 

0.401 

0.440 

0.621 

0.496 

0.583 

0.430 

0.396 

0.509 

0.558 

0.537 

0.553 

0.586 

0.527 

min: 0.396 max: 0.628 V-types: 4 

COMMENT
 

Carbonaceous shale. Sample contains approximately 15 rock fragments containing dispersed and in situ vitrinite. 

Abundant inertinite-liptinite. High polishing relief.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

118
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 11 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.53 

s.d.: 0.08 

Edgar Guevara 

Texas CBM 

telovitrinite 

7/1/2005 

well cuttings 

3/17/2006 

P. Hackley 

Schreiber No. 1 1770-1780' 

Schreiber No. 1 1770-1780' 

0 

1 

2 

3 

0.450.470.490.510.530.550.570.590.610.630.650.670.690.710.73 

Ro ran 

No. of measurements 

DATA 

0.717 

0.637 

0.479 

0.456 

0.553 

0.511 

0.552 

0.486 

0.523 

0.462 

0.496 

min: 0.456 max: 0.717 V-types: 4 

COMMENT 

Sample contains <10 rock fragments with dispersed vitrinite fragments. Poor preparation - fragments are dispersed to 

edges of briquette. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

119
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 20 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.56 

s.d.: 0.08 

Edgar Guevara 

Texas CBM 

telovitrinite 

7/1/2005 

well cuttings 

3/17/2006 

P. Hackley 

Schreiber No. 1 1780-1790' 

Schreiber No. 1 1780-1790' 

0 

1 

2 

3 

4 

5 

0.390.410.430.450.470.490.510.530.550.570.590.610.630.650.670.690.710.73 

Ro ran 

No. of measurements 

DATA 

0.712 

0.591 

0.625 

0.479 

0.620 

0.396 

0.502 

0.512 

0.485 

0.456 

0.512 

0.511 

0.583 

0.676 

0.556 

0.592 

0.604 

0.649 

0.515 

0.577 

min: 0.396 max: 0.712 V-types: 5 

COMMENT
 

Sample contains 3 fragments, of which 2 contain dispersed vitrinite.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

120
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.49 

s.d.: 0.07 

Edgar Guevara 

Texas CBM 

telovitrinite 

7/1/2005 

well cuttings 

2/28/2006 

P. Hackley 

Peyson No. 1 680-690' 

Peyson No. 1 680-690' 

0 

0.5 

1 

1.5 

2 

2.5 

3 

3.5 

4 

4.5 

0.340.360.38

0.4

0.420.440.460.48

0.5

0.520.540.560.58

0.6

0.620.64 

Ro ran 

No. of measurements 

DATA 

0.524 

0.508 

0.552 

0.624 

0.526 

0.459 

0.522 

0.572 

0.424 

0.473 

0.556 

0.435 

0.423 

0.581 

0.460 

0.504 

0.410 

0.426 

0.417 

0.485 

0.431 

0.397 

0.574 

0.633 

0.535 

0.348 

0.504 

0.459 

0.441 

0.541 

0.489 

0.449 

0.622 

0.465 

0.405 

0.478 

0.419 

0.412 

0.590 

0.618 

0.459 

0.467 

0.463 

0.557 

0.572 

0.637 

0.509 

0.393 

0.415 

0.438 

min: 0.348 max: 0.637 V-types: 4 

COMMENT
 

Abundant in situ vitrinite.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

121
VITRINITE REFLECTANCE REPORT 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 <ASTM/ISO Standards 

maceral type: 

Edga

SAMPLE INFORMATION 

r Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

2/28/2006 

P. Hackley 

Peyson No. 1 870-880' 

Peyson No. 1 870-880' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

min: 0.000 max: 0.000 V-types: 0 

COMMENT
 

All of organic material in sample is inertinite (variety fusinite). Sample consists of 8 cuttings.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

122
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 29 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.49 

s.d.: 0.05 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

3/17/2006 

P. Hackley 

Peyson No. 1 900-910' 

Peyson No. 1 900-910' 

0 

1 

2 

3 

4 

5 

6 

0.330.350.370.390.410.430.450.470.490.510.530.550.57 

Ro ran 

No. of measurements 

DATA 

0.549 

0.533 

0.525 

0.527 

0.544 

0.465 

0.467 

0.475 

0.494 

0.494 

0.515 

0.524 

0.406 

0.465 

0.460 

0.547 

0.567 

0.398 

0.517 

0.492 

0.393 

0.337 

0.556 

0.538 

0.521 

0.526 

0.477 

0.491 

0.514 

min: 0.337 max: 0.567 V-types: 3 

COMMENT 

Carbonaceous shale. Dispersed and in situ vitrinite and inertinite. Sample consists of approximately 15 rock 

fragments. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

123
SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 7 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.67 

s.d.: 0.13 

Edgar Guevara 

Texas CBM 

telovitrinite 

7/1/2005 

well cuttings 

2/28/2006 

P. Hackley 

Peyson No. 1 1170-1180' 

Peyson No. 1 1170-1180' 

0 

1 

2 

3 

4 

0.450.470.490.510.530.550.570.590.610.630.650.670.690.710.730.750.770.79 

Ro ran 

No. of measurements 

VITRINITE REFLECTANCE REPORT 

DATA 

0.765 

0.451 

0.770 

0.772 

0.672 

0.491 

0.769 

min: 0.451 max: 0.772 V-types: 4 

COMMENT 

Sample contains 3 cuttings. Higher reflectance values may be on inertinites; however, all measurements are 

tentatively interpreted to be on vitrinite. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

124
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 0 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): N/A 

s.d.: N/A 

Edgar Guevara 

Texas CBM 

N/A 

7/1/2005 

well cuttings 

3/21/2006 

P. Hackley 

Peyson No. 1 1180-1190' 

Peyson No. 1 1180-1190' 

0 

1 

2 

Ro ran 

No. of measurements 

DATA 

min: 0.000 max: 0.000 V-types: 0 

COMMENT
 

Sample consists of 3 rock fragments which contain dispersed inertinite particles. No vitrinite present.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

125
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.67 

s.d.: 0.08 

Edgar Guevara 

Texas CBM 

telovitrinite 

7/1/2005 

well cuttings 

2/9/2006 

P. Hackley 

Peyson No. 1 1390-1400' 

Peyson No. 1 1390-1400' 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

0.470.490.510.530.550.570.590.610.630.650.670.690.710.730.750.770.790.81 

Ro ran 

No. of measurements 

DATA 

0.590 

0.548 

0.701 

0.474 

0.677 

0.616 

0.636 

0.616 

0.665 

0.715 

0.595 

0.611 

0.724 

0.715 

0.704 

0.604 

0.669 

0.719 

0.703 

0.729 

0.740 

0.687 

0.677 

0.736 

0.775 

0.719 

0.701 

0.806 

0.598 

0.712 

0.703 

0.682 

0.750 

0.779 

0.706 

0.798 

0.737 

0.487 

0.703 

0.757 

0.624 

0.754 

0.699 

0.610 

0.559 

0.713 

0.502 

0.611 

0.532 

0.702 

min: 0.474 max: 0.806 V-types: 5 

COMMENT
 

Carbonaceous shale. Abundant in situ vitrinite. High polishing relief.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

126
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 10 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.63 

s.d.: 0.06 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

2/25/2006 

P. Hackley 

Peyson No. 1 1420-1430' 

Peyson No. 1 1420-1430' 

0 

1 

2 

3 

0.48

0.5

0.520.540.560.58

0.6

0.620.640.660.68

0.7

0.72 

Ro ran 

No. of measurements 

DATA 

0.622 

0.676 

0.644 

0.612 

0.649 

0.486 

0.656 

0.716 

0.633 

0.605 

min: 0.486 max: 0.716 V-types: 4 

COMMENT
 

Most of the organic material in sample is inertinite; variety fusinite.
 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

127
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 27 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.53 

s.d.: 0.06 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

2/28/2006 

P. Hackley 

Peyson No. 1 1580-1590' 

Peyson No. 1 1580-1590' 

0 

1 

2 

3 

4 

5 

6 

7 

0.450.470.490.510.530.550.570.590.610.630.650.670.69 

Ro ran 

No. of measurements 

DATA 

0.519 

0.505 

0.644 

0.505 

0.469 

0.450 

0.462 

0.475 

0.451 

0.615 

0.477 

0.465 

0.505 

0.522 

0.503 

0.615 

0.508 

0.492 

0.586 

0.505 

0.621 

0.673 

0.599 

0.512 

0.638 

0.539 

0.559 

min: 0.450 max: 0.673 V-types: 3 

COMMENT 

Carbonaceous shale. Result (0.53%) is inconsistent (lower) than samples from higher in well at approximately 1400 ft 

(0.6-0.7%). Sample contains approximately 10 cuttings with dispersed and indigenous vitrinite. Possible caving from 

higher in hole? 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

128
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 4 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.51 

s.d.: 0.02 

Edgar Guevara 

Texas CBM 

telovitrinite 

7/1/2005 

well cuttings 

2/28/2006 

P. Hackley 

Peyson No. 1 1760-1770' 

Peyson No. 1 1760-1770' 

0 

1 

2 

0.48

0.5

0.520.540.56 

Ro ran 

No. of measurements 

DATA 

0.497 

0.488 

0.551 

0.507 

min: 0.488 max: 0.551 V-types: 2 

COMMENT 

Sample contains abundant fusinite; approximately 95% of cuttings (of 35-45 particles). Reflectance measurements 

were made on the one cutting that did contain vitrinite. Result (0.51%) is inconsistent with higher values from 

shallower depths and probably is from caving. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

129
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 11 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 1.01 

s.d.: 0.07 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

3/3/2006 

P. Hackley 

Peyson No. 1 3570-3580' 

Peyson No. 1 3570-3580' 

0 

1 

2 

3 

4 

0.920.940.960.98

1

1.021.041.061.08

1.1

1.121.14 

Ro ran 

No. of measurements 

DATA 

1.075 

0.984 

1.092 

1.098 

1.121 

0.981 

0.989 

0.924 

0.949 

0.959 

0.954 

min: 0.924 max: 1.121 V-types: 3 

COMMENT 

Sample is one cutting (1-2 other cuttings lost during polishing of briquette). Cutting is approximately 1 x 2 mm, and 

dominated by massive pyrite with minor vitrinite fragments. Result (1.01 %) is inconsistent with all other values 

from Archer County. Value probably is impacted by proximity to high-reflecting pyrite. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

130
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 8 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.77 

s.d.: 0.08 

Edgar Guevara 

Texas CBM 

telohuminite 

7/1/2005 

well cuttings 

3/3/2006 

P. Hackley 

Peyson No. 1 3850-3860' 

Peyson No. 1 3850-3860' 

0 

1 

2 

3 

0.640.660.68

0.7

0.720.740.760.78

0.8

0.820.840.860.88

0.9

0.92 

Ro ran 

No. of measurements 

DATA 

0.791 

0.649 

0.914 

0.822 

0.687 

0.782 

0.754 

0.788 

min: 0.649 max: 0.914 V-types: 4 

COMMENT 

Sample is two cuttings, one of which contains vitrinite (1-2 other cuttings lost during polishing of briquette). Value is 

consistent with other deep Archer and Young County cuttings samples. 

U.S. Department of the Interior ICCP/A/52.1/0220A Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2006 Organic Petrology Laboratory 

131
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.97 

s.d.: 0.05 

Tucker Hentz 

Texas CBM 

telovitrinite 

2/28/2007 

core 

3/30/2007 

P. Hackley 

Oxy Tarrant A-4 5541.0' 

Oxy Tarrant A-4 5541.0' 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

0.870.890.910.930.950.970.991.011.031.051.07 

Ro ran 

No. of measurements 

DATA 

0.965 

1.023 

1.022 

1.019 

0.878 

0.939 

0.987 

0.913 

0.985 

0.985 

1.013 

0.964 

0.982 

1.033 

1.021 

0.888 

0.927 

1.037 

0.982 

0.982 

0.913 

0.927 

0.925 

0.991 

1.003 

0.896 

0.930 

0.950 

0.872 

0.956 

0.973 

0.872 

0.985 

1.010 

0.989 

1.060 

1.048 

0.969 

0.883 

0.901 

0.945 

0.901 

1.057 

1.013 

1.014 

0.940 

0.977 

0.973 

0.938 

0.984 

min: 0.872 max: 1.060 V-types: 3 

COMMENT 

Measured value consistent with previously determined lower Atoka samples. Comprised of mostly homogenous 

vitrinite with relic cellular structure. Fragments of mineral-matter-rich carbonaceous shale contain dispersed and in 

situ vitrinite as well as most of sample inertinite. Scattered fragments of trimaceral coal present. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

132
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 1.00 

s.d.: 0.03 

Tucker Hentz 

Texas CBM 

telovitrinite 

2/28/2007 

core 

3/28/2007 

P. Hackley 

Oxy Tarrant A-4 5541.3' 

Oxy Tarrant A-4 5541.3' 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

0.910.930.950.970.991.011.031.051.07 

Ro ran 

No. of measurements 

DATA 

1.016 

1.036 

1.022 

0.991 

0.913 

0.982 

0.957 

0.986 

0.998 

0.982 

1.002 

1.017 

1.016 

1.062 

1.035 

0.980 

1.003 

1.036 

0.978 

0.975 

0.979 

0.979 

0.997 

0.989 

0.984 

1.038 

1.002 

0.992 

0.991 

1.002 

0.986 

1.012 

0.972 

1.017 

1.007 

1.008 

1.027 

0.983 

1.012 

1.006 

0.962 

0.973 

0.948 

1.022 

0.972 

1.001 

0.991 

0.965 

1.009 

1.003 

min: 0.913 max: 1.062 V-types: 2 

COMMENT 

Measured value consistent with three previously determined Atoka samples. Comprised of mostly homogenous 

vitrinite with relic cellular structure. Fragments of mineral-matter-rich carbonaceous shale contain dispersed and in 

situ vitrinite as well as most of sample inertinite. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

133
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.96 

s.d.: 0.07 

Tucker Hentz 

Texas CBM 

telovitrinite 

2/28/2007 

core 

3/30/2007 

P.Hackley 

Oxy Tarrant A-4 5541.7' 

Oxy Tarrant A-4 5541.7' 

0 

1 

2 

3 

4 

5 

0.8

0.820.840.860.88

0.9

0.920.940.960.98

1

1.021.041.061.08 

Ro ran 

No. of measurements 

DATA 

1.039 

0.844 

0.831 

0.916 

0.908 

0.968 

1.028 

1.053 

1.014 

1.012 

0.801 

0.985 

0.974 

0.935 

0.947 

1.064 

1.027 

1.058 

0.993 

0.956 

0.927 

0.922 

1.042 

0.902 

0.909 

0.889 

0.987 

0.955 

1.040 

0.992 

0.842 

0.887 

0.806 

0.847 

1.052 

1.011 

0.952 

1.008 

0.938 

0.992 

0.927 

0.869 

1.014 

0.952 

1.053 

0.887 

1.028 

1.041 

0.842 

0.988 

min: 0.801 max: 1.064 V-types: 3 

COMMENT 

Sample contains dispersed indigenous vitrinite, inertinite, and vitrinite bands in coaly shale fragments. Contains more 

mineral matter than other lower Atoka samples examined to-date. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

134
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.97 

s.d.: 0.06 

Tucker Hentz 

Texas CBM 

telovitrinite 

2/28/2007 

core 

3/14/2007 

P. Hackley 

EP Tarrant WB-3 5402.0 

EP Tarrant WB-3 5402.0 

0 

1 

2 

3 

4 

5 

6 

7 

0.820.840.860.88

0.9

0.920.940.960.98

1

1.021.041.061.08 

Ro ran 

No. of measurements 

DATA 

1.031 

0.972 

0.995 

1.003 

0.827 

0.844 

0.894 

1.005 

1.062 

0.915 

0.934 

0.929 

1.026 

0.938 

0.912 

0.982 

1.022 

1.021 

0.982 

1.036 

0.920 

0.995 

1.015 

1.007 

0.908 

0.930 

1.031 

0.997 

0.915 

1.012 

0.964 

0.927 

0.856 

0.891 

0.872 

0.976 

0.997 

0.912 

0.972 

1.004 

1.038 

0.917 

1.035 

1.008 

1.014 

0.996 

1.003 

0.989 

1.012 

1.042 

min: 0.827 max: 1.062 V-types: 3 

COMMENT 

Sample is mineral-matter-rich banded coal, with very sparse inertinite. Pyrite framboids abundant. Most vitrinite is 

homogenous and unstructured. Sparse resinite is almost equivalent in reflectance to vitrinite. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

135
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 1.00 

s.d.: 0.04 

Tucker Hentz 

Texas CBM 

telovitrinite 

2/28/2007 

core 

3/28/2007 

P. Hackley 

EP Tarrant WB-3 5402.3' 

EP Tarrant WB-3 5402.3' 

0 

1 

2 

3 

4 

5 

6 

7 

8 

0.88

0.9

0.920.940.960.98

1

1.021.041.061.08 

Ro ran 

No. of measurements 

DATA 

1.030 

0.962 

1.031 

1.008 

0.958 

1.012 

1.021 

1.045 

1.003 

0.983 

0.902 

0.982 

1.025 

0.960 

0.963 

1.044 

0.956 

1.047 

1.002 

0.991 

0.906 

0.928 

1.032 

1.036 

0.986 

0.886 

1.014 

0.969 

1.054 

0.962 

1.027 

1.026 

0.976 

0.983 

0.998 

0.976 

0.985 

1.022 

1.055 

1.047 

0.967 

0.924 

1.041 

1.062 

1.046 

1.007 

0.993 

0.955 

1.063 

1.022 

min: 0.886 max: 1.063 V-types: 3 

COMMENT 

Determined reflectance is consistent with other Atoka samples examined to-date. Sample comprised of mostly 

homogenous vitrinite with some relic cellular structure, mineral-matter-rich fragments containing in situ and dispersed 

vitrinite particles and inertinite. Very similar to other Atoka samples in appearance. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

136
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 1.03 

s.d.: 0.03 

Tucker Hentz 

Texas CBM 

telovitrinite 

2/28/2007 

core 

3/14/2007 

P. Hackley 

EP Tarrant WB-3 5403.8 

EP Tarrant WB-3 5403.8 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

0.950.970.991.011.031.051.07 

Ro ran 

No. of measurements 

DATA 

1.052 

1.035 

0.984 

1.008 

1.021 

1.054 

1.056 

0.985 

1.011 

1.052 

1.041 

1.047 

1.006 

1.032 

1.054 

1.043 

1.042 

0.959 

1.024 

1.028 

1.057 

1.067 

1.044 

1.035 

0.985 

0.998 

0.964 

1.035 

0.987 

1.031 

1.022 

1.024 

1.022 

0.991 

1.025 

1.062 

1.016 

1.011 

1.036 

1.049 

1.003 

1.025 

1.022 

0.978 

1.051 

1.033 

1.063 

1.029 

1.008 

1.064 

min: 0.959 max: 1.067 V-types: 2 

COMMENT 

Sample essentially is identical to EP Tarrant WB-3 5402.0, also examined on 3/14/07. Composed of mostly 

homogenized vitrinite; some telinite structure apparent. Some oxidation cracks visible. Bands of mineral matter are 

associated with pyrite mineralization and greater abundance of inertinite. Inertinite essentially absent from 

homogenous telinite fragments. Liptinite not readily apparent in white light. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

137
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.98 

s.d.: 0.05 

Tucker Hentz 

Texas CBM 

telovitrinite 

2/28/2007 

core 

3/28/2007 

P. Hackley 

EP Tarrant WB-3 5404.2' 

EP Tarrant WB-3 5404.2' 

0 

1 

2 

3 

4 

5 

6 

7 

8 

0.820.840.860.88

0.9

0.920.940.960.98

1

1.021.041.061.08 

Ro ran 

No. of measurements 

DATA 

0.952 

0.995 

1.029 

1.054 

1.018 

0.942 

0.858 

0.824 

0.873 

0.953 

0.857 

0.854 

1.037 

1.028 

0.945 

0.962 

1.031 

0.992 

0.932 

1.064 

0.983 

0.967 

0.956 

0.969 

0.943 

0.952 

1.007 

0.998 

0.995 

1.006 

0.993 

0.984 

1.052 

1.012 

0.994 

1.011 

0.982 

0.956 

0.957 

1.008 

1.003 

1.032 

1.013 

1.061 

0.896 

1.001 

0.935 

0.962 

0.953 

0.971 

min: 0.824 max: 1.064 V-types: 3 

COMMENT 

Determined reflectance is consistent with two other Atoka samples measured to date (~0.9%). Comprised of 

mostly homogenized vitrinite, with relic cellular structures. Some dispersed mineral-matter-rich fragments with 

indigenous vitrinite layers and disseminated vitrinite particles. Inertinite relatively rare. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

138
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 100 

maceral type: 

Ro ran (ISO/ASTM): 0.83 

s.d.: 0.04 

Edgar Guevara 

Texas CBM 

telovitrinite 

3/13/2006 

grab sample 

2/21/2007 

P. Hackley 

TBEG 396 

TBEG 396 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

0.710.730.750.770.790.810.830.850.870.890.910.93 

Ro ran 

No. of measurements 

DATA 

0.797 

0.789 

0.844 

0.856 

0.861 

0.877 

0.828 

0.836 

0.796 

0.801 

0.804 

0.897 

0.765 

0.785 

0.861 

0.814 

0.802 

0.903 

0.907 

0.875 

0.838 

0.845 

0.780 

0.818 

0.795 

0.850 

0.788 

0.805 

0.803 

0.893 

0.770 

0.877 

0.875 

0.870 

0.846 

0.810 

0.773 

0.774 

0.864 

0.805 

0.826 0.774 

0.717 0.815 

0.813 0.866 

0.848 0.860 

0.796 0.866 

0.838 0.917 

0.819 0.856 

0.896 0.833 

0.856 0.838 

0.875 0.818 

0.844 

0.846 

0.843 

0.876 

0.905 

0.843 

0.791 

0.843 

0.785 

0.886 

0.797 

0.802 

0.852 

0.828 

0.890 

0.833 

0.876 

0.838 

0.833 

0.838 

0.756 

0.813 

0.846 

0.846 

0.803 

0.831 

0.775 

0.823 

0.831 

0.826 

0.848 

0.818 

0.785 

0.860 

0.820 

0.797 

0.850 

0.850 

0.786 

0.835 

min: 0.717 max: 0.917 V-types: 3 

COMMENT 

Sample is clean coal, of higher maturity than other two TBEG grab samples. One hundred measurements of random 

reflectance per ASTM D 2798. Sample is from Crystal Falls, Stephens County. 

U.S. Department of the Interior ICCP/SCAP-068/AB Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

139
SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 100 

maceral type: 

Ro ran (ISO/ASTM): 0.66 

s.d.: 0.04 

Edgar Guevara 

Texas CBM 

telovitrinite 

7/5/2006 

grab (coal core) 

2/13/2007 

P. Hackley 

TBEG 393 

TBEG 393 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

0.570.590.610.630.650.670.690.710.730.75 

Ro ran 

No. of measurements 

VITRINITE REFLECTANCE REPORT 

DATA 

0.692 

0.651 

0.639 

0.678 

0.676 

0.683 

0.667 

0.703 

0.690 

0.628 

0.665 

0.665 

0.682 

0.645 

0.678 

0.694 

0.643 

0.676 

0.638 

0.681 

0.672 

0.677 

0.702 

0.701 

0.670 

0.599 

0.722 

0.682 

0.719 

0.642 

0.708 

0.699 

0.692 

0.688 

0.678 

0.664 

0.675 

0.661 

0.624 

0.692 

0.685 

0.685 

0.714 

0.673 

0.672 

0.608 

0.702 

0.658 

0.704 

0.741 

0.695 

0.691 

0.633 

0.658 

0.659 

0.639 

0.662 

0.643 

0.703 

0.683 

0.611 

0.611 

0.629 

0.576 

0.607 

0.667 

0.636 

0.694 

0.650 

0.658 

0.663 

0.640 

0.626 

0.645 

0.591 

0.598 

0.623 

0.615 

0.610 

0.695 

0.578 

0.623 

0.637 

0.592 

0.672 

0.683 

0.624 

0.612 

0.655 

0.695 

0.642 

0.626 

0.612 

0.622 

0.654 

0.589 

0.663 

0.641 

0.642 

0.675 

min: 0.576 max: 0.741 V-types: 3 

COMMENT 

Sample was collected from TBEG core library by Guevara and Tewalt. Sample consisted of random chunks pulled 

from coal sample. Clean banded coal, with some scattered carbominerite bands. Analysis per ASTM D 2798. Sample 

is from 1 mile north of the old Stephens Mine, Montague County. 

U.S. Department of the Interior ICCP/SCAP-068/AB Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

140
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 50 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.66 

s.d.: 0.04 

Edgar Guevara 

Texas CBM 

telovitrinite 

7/5/2006 

grab - coal core 

2/13/2007 

P. Hackley 

TBEG 384 

TBEG 384 

0 

1 

2 

3 

4 

5 

6 

7 

0.58

0.6

0.620.640.660.68

0.7

0.720.740.76 

Ro ran 

No. of measurements 

DATA 

0.731 0.675 0.645 0.747 0.674 

0.635 0.633 0.647 0.637 0.631 

0.658 0.641 0.703 0.675 0.610 

0.652 0.663 0.693 0.611 0.634 

0.661 0.607 0.737 0.661 0.731 

0.732 0.661 0.688 0.665 0.656 

0.649 0.688 0.684 0.593 0.645 

0.659 0.645 0.723 0.686 0.656 

0.581 0.683 0.711 0.616 0.638 

0.595 0.657 0.691 0.717 0.676 

min: 0.581 max: 0.747 V-types: 3 

COMMENT 

Sample collected from TBEG core library by Tewalt and Guevara. Sample consisted of random chunks grabbed from 

coal sample. Sample is from Johnson Mine. B pellet severely tarnished on 2/13/07 and was not analyzed. 

Determined value consistent with other coal sample (TBEG 393). Sample consists of clean coal - may be slightly 

more detrital in character than TBEG 393. 

U.S. Department of the Interior ICCP/SCAP-068/AB Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

141
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 15 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.52 

s.d.: 0.06 

S. Tewalt 

Texas CBM 

telovitrinite 

10/1/2006 

core 

3/30/2007 

P. Hackley 

C. Bryan No. 8, Sample 5 

C. Bryan No. 8, Sample 5 

0 

1 

2 

3 

4 

0.4

0.420.440.460.48

0.5

0.520.540.560.58

0.6

0.62 

Ro ran 

No. of measurements 

DATA 

0.583 

0.609 

0.401 

0.446 

0.553 

0.545 

0.604 

0.482 

0.535 

0.479 

0.498 

0.578 

0.512 

0.514 

0.512 

min: 0.401 max: 0.609 V-types: 3 

COMMENT 

Sample is from Little Bull Creek mine, Coleman County, Texas. Core is through 2.5-3.0 ft Harpersville Fm. (Cisco 

Group) coal. Collected by Tewalt in 1988. Sample is one large fragment (10 x 35 mm) of core. Fragment composed of 

highly heterogeneous vitrain band, including sparse inertinite fragments. Abundant disseminated mineral matter. 

Corpogelinite avoided during analysis. Fm. = Formation. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

142
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 30 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.52 

s.d.: 0.04 

S. Tewalt 

Texas CBM 

telovitrinite 

10/1/2006 

core 

3/30/2007 

P. Hackley 

C. Bryan No. 8, Sample 4A 

C. Bryan No. 8, Sample 4A 

0 

1 

2 

3 

4 

5 

6 

7 

0.430.450.470.490.510.530.550.570.590.61 

Ro ran 

No. of measurements 

DATA 

0.448 0.535 0.602 

0.453 0.572 0.550 

0.532 0.533 0.523 

0.511 0.485 0.515 

0.467 0.483 0.533 

0.498 0.467 0.540 

0.431 0.515 0.471 

0.502 0.508 0.552 

0.608 0.545 0.532 

0.530 0.554 0.515 

min: 0.431 max: 0.608 V-types: 3 

COMMENT 

Sample is from Little Bull Creek mine, Coleman County, Texas. Core is through 2.5-3.0 ft Harpersville Fm. (Cisco 

Group) coal. Collected by Tewalt in 1988. Sample is four fragments of core. Fragments composed of highly 

heterogeneous vitrain bands including sparse inertinite fragments and liptinite. Abundant disseminated mineral 

matter. Corpogelinite avoided during analysis. Measurement consistent with one other previously determined value 

from Little Bull Creek. Fm. = Formation. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

143
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Lab ID 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 100 ASTM 2798 

maceral type: 

Ro ran (ISO/ASTM): 0.63 

s.d.: 0.05 

6/7/2007 

155 

P. Hackley 

Paul Hackley 

Texas CBM 

telovitrinite 

9/30/2006 

channel 

TX-1 

TX-1 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

0.520.540.560.58

0.6

0.620.640.660.68

0.7

0.720.740.760.78 

Ro ran 

No. of measurements 

DATA 

0.613 

0.585 

0.632 

0.650 

0.585 

0.648 

0.676 

0.609 

0.629 

0.694 

0.606 

0.597 

0.633 

0.535 

0.640 

0.637 

0.683 

0.602 

0.680 

0.643 

0.707 

0.590 

0.606 

0.695 

0.600 

0.691 

0.594 

0.681 

0.668 

0.620 

0.666 

0.695 

0.642 

0.649 

0.607 

0.611 

0.644 

0.655 

0.652 

0.535 

0.632 0.708 

0.616 0.676 

0.703 0.589 

0.548 0.634 

0.634 0.649 

0.657 0.677 

0.602 0.657 

0.668 0.658 

0.726 0.691 

0.582 0.674 

0.709 

0.608 

0.627 

0.624 

0.615 

0.668 

0.589 

0.564 

0.682 

0.769 

0.725 

0.602 

0.616 

0.597 

0.611 

0.666 

0.648 

0.641 

0.527 

0.607 

0.610 

0.638 

0.614 

0.653 

0.600 

0.601 

0.686 

0.593 

0.575 

0.630 

0.624 

0.612 

0.601 

0.652 

0.658 

0.655 

0.558 

0.648 

0.533 

0.594 

min: 0.527 max: 0.769 V-types: 3 

COMMENT 

Sample does not contain significant fluorescing organic material. Contains some scattered fluorescent mineral 

matter. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

144
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Lab ID 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 100 ASTM 2798 

maceral type: 

Ro ran (ISO/ASTM): 0.65 

s.d.: 0.05 

6/7/2007 

156 

P. Hackley 

Paul Hackley 

Texas CBM 

telovitrinite 

9/30/2006 

channel 

TX-2 

TX-2 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

0.540.560.58

0.6

0.620.640.660.68

0.7

0.720.740.76 

Ro ran 

No. of measurements 

DATA 

0.613 

0.643 

0.715 

0.655 

0.668 

0.615 

0.674 

0.703 

0.697 

0.690 

0.710 

0.681 

0.590 

0.578 

0.668 

0.740 

0.617 

0.706 

0.608 

0.611 

0.696 

0.669 

0.719 

0.680 

0.632 

0.679 

0.616 

0.668 

0.583 

0.651 

0.672 

0.649 

0.569 

0.664 

0.661 

0.683 

0.680 

0.698 

0.648 

0.641 

0.628 0.674 

0.633 0.646 

0.718 0.703 

0.596 0.716 

0.679 0.670 

0.620 0.655 

0.599 0.694 

0.658 0.729 

0.566 0.589 

0.605 0.690 

0.692 

0.665 

0.653 

0.628 

0.666 

0.557 

0.555 

0.601 

0.624 

0.553 

0.543 

0.730 

0.720 

0.714 

0.656 

0.598 

0.643 

0.635 

0.601 

0.675 

0.624 

0.650 

0.623 

0.732 

0.608 

0.709 

0.745 

0.744 

0.698 

0.726 

0.688 

0.649 

0.685 

0.644 

0.677 

0.623 

0.674 

0.657 

0.574 

0.643 

min: 0.543 max: 0.745 V-types: 3 

COMMENT 

Fluorescence response very dim - rare resinite, sporinite, and cutinite present. Coal is dominantly oxidized 

telovitrinite with a substantial amount of detrovitrinite present as well. Fusinite was macerated during sample 

collection/preparation and occurs primarily as finely comminuted fragments along binder matrix grain boundaries. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

145
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Lab ID 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 100 ASTM 2798 

maceral type: 

Ro ran (ISO/ASTM): 0.66 

s.d.: 0.04 

6/7/2007 

157 

P. Hackley 

Paul Hackley 

Texas CBM 

telovitrinite 

9/30/2006 

channel 

TX-3 

TX-3 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

0.560.58

0.6

0.620.640.660.68

0.7

0.720.740.76 

Ro ran 

No. of measurements 

DATA 

0.720 

0.724 

0.583 

0.722 

0.653 

0.623 

0.717 

0.638 

0.718 

0.632 

0.660 

0.670 

0.627 

0.657 

0.668 

0.561 

0.701 

0.679 

0.704 

0.605 

0.715 

0.700 

0.683 

0.750 

0.715 

0.692 

0.711 

0.686 

0.715 

0.698 

0.705 

0.643 

0.704 

0.682 

0.668 

0.729 

0.682 

0.739 

0.654 

0.643 

0.615 0.663 

0.561 0.663 

0.633 0.654 

0.677 0.686 

0.646 0.657 

0.639 0.692 

0.734 0.684 

0.703 0.656 

0.699 0.645 

0.721 0.655 

0.621 

0.664 

0.646 

0.642 

0.632 

0.686 

0.626 

0.632 

0.605 

0.662 

0.643 

0.680 

0.686 

0.651 

0.660 

0.691 

0.667 

0.575 

0.666 

0.683 

0.681 

0.604 

0.643 

0.603 

0.677 

0.577 

0.637 

0.636 

0.675 

0.648 

0.595 

0.671 

0.678 

0.654 

0.668 

0.616 

0.635 

0.644 

0.645 

0.613 

min: 0.561 max: 0.750 V-types: 3 

COMMENT 

Telovitrinite exhibits abundant oxidation/shrinkage cracks from weathering at outcrop. Reflectance value probably 

influenced by oxidation. Organic material very similar to TX-1, TX-2. Measured reflectance essentially identical to TX2 (0.65%). 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

146
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Lab ID 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 37 <ASTM/ISO Standards 

maceral type: 

Ro ran (ISO/ASTM): 0.62 

s.d.: 0.07 

6/7/2007 

158 

P. Hackley 

Paul Hackley 

Texas CBM 

telovitrinite 

9/30/2006 

outcrop 

TX-4 

TX-4 

0 

1 

2 

3 

4 

5 

0.510.530.550.570.590.610.630.650.670.690.710.730.750.77 

Ro ran 

No. of measurements 

DATA 

0.653 

0.752 

0.614 

0.721 

0.633 

0.672 

0.569 

0.642 

0.677 

0.580 

0.558 

0.671 

0.564 

0.519 

0.595 

0.607 

0.612 

0.577 

0.612 

0.617 

0.683 

0.668 

0.530 

0.745 

0.764 

0.581 

0.590 

0.580 

0.525 

0.748 

0.530 

0.625 

0.534 

0.606 

0.610 

0.604 

0.598 

min: 0.519 max: 0.764 V-types: 3 

COMMENT 

Sample is mostly mineral matter (>90%). High polishing relief; briquette surface contains numerous plucks. Organic 

material mostly is oxidized. Rare fragments of trimaceral coal present. Reflectance value very similar to nearby 

samples of better analysis quality. Sample was collected from roadside outcrop for reflectance analysis only. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

147
 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Lab ID 

Sample Type 

Date Analyzed: 

Operator: P. Hackley 

RESULTS 

# measurements: 100 ASTM 2798 

maceral type: 

Ro ran (ISO/ASTM): 0.58 

s.d.: 0.06 

P. Hackley 

Texas CBM 

telovitrinite 

9/30/2006 

channel 

TX-5 

184 

5/24/2007 

TX-5 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

0.440.460.48

0.5

0.520.540.560.58

0.6

0.620.640.660.68

0.7

0.720.74 

Ro ran 

No. of measurements 

VITRINITE REFLECTANCE REPORT 

DATA 

0.714 

0.692 

0.563 

0.602 

0.518 

0.732 

0.537 

0.683 

0.560 

0.650 

0.595 

0.675 

0.532 

0.560 

0.541 

0.469 

0.544 

0.571 

0.514 

0.554 

0.688 

0.468 

0.450 

0.553 

0.626 

0.582 

0.596 

0.614 

0.615 

0.578 

0.580 

0.654 

0.686 

0.592 

0.580 

0.625 

0.606 

0.506 

0.536 

0.532 

0.609 0.549 

0.510 0.599 

0.681 0.659 

0.662 0.483 

0.499 0.607 

0.563 0.682 

0.554 0.552 

0.642 0.589 

0.609 0.547 

0.704 0.541 

0.511 

0.620 

0.645 

0.544 

0.567 

0.623 

0.595 

0.549 

0.583 

0.589 

0.558 

0.506 

0.578 

0.531 

0.524 

0.559 

0.589 

0.651 

0.612 

0.506 

0.552 

0.538 

0.588 

0.457 

0.532 

0.545 

0.507 

0.573 

0.571 

0.538 

0.607 

0.582 

0.502 

0.634 

0.508 

0.557 

0.689 

0.566 

0.597 

0.563 

min: 0.450 max: 0.732 V-types: 4 

COMMENT 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

148
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Lab ID 185 

Sample Type 

Date Analyzed: 

Operator: P. Hackley 

RESULTS 

# measurements: 100 ASTM 2798 

maceral type: 

Ro ran (ISO/ASTM): 0.66 

s.d.: 0.07 

Paul Hackley 

Texas CBM 

telovitrinite 

9/30/2006 

channel 

TX-6 

5/24/2007 

TX-6 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

0.460.48

0.5

0.520.540.560.58

0.6

0.620.640.660.68

0.7

0.720.740.760.78

0.8

0.82 

Ro ran 

No. of measurements 

DATA 

0.731 

0.640 

0.769 

0.627 

0.642 

0.683 

0.697 

0.603 

0.707 

0.706 

0.737 

0.760 

0.669 

0.710 

0.727 

0.626 

0.559 

0.703 

0.759 

0.692 

0.760 

0.772 

0.646 

0.651 

0.674 

0.565 

0.595 

0.601 

0.601 

0.643 

0.633 

0.753 

0.649 

0.721 

0.682 

0.578 

0.471 

0.693 

0.655 

0.697 

0.683 0.666 

0.695 0.660 

0.633 0.716 

0.605 0.572 

0.652 0.629 

0.666 0.734 

0.708 0.559 

0.648 0.732 

0.612 0.681 

0.595 0.715 

0.725 

0.732 

0.687 

0.733 

0.703 

0.719 

0.534 

0.689 

0.650 

0.801 

0.734 

0.768 

0.554 

0.698 

0.544 

0.634 

0.656 

0.636 

0.726 

0.697 

0.679 

0.561 

0.631 

0.586 

0.684 

0.460 

0.699 

0.736 

0.551 

0.617 

0.604 

0.562 

0.624 

0.704 

0.696 

0.699 

0.547 

0.722 

0.622 

0.654 

min: 0.460 max: 0.801 V-types: 5 

COMMENT
 

Value is significantly higher than for adjacent upper coal bed (0.58% - sample TX-5). Standard had drifted high 

(0.968%). Recalibrated and reevaluated. Higher reflectance than adjacent bed - compare to calculated value of 0.63% 

from Humble Rock-Eval analysis.
 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

149
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Lab ID 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 100 ASTM 2798 

maceral type: 

Ro ran (ISO/ASTM): 0.68 

s.d.: 0.07 

Paul Hackley 

Texas CBM 

telovitrinite 

9/30/2006 

channel 

TX-7 

5/29/2007 

186 

P. Hackley 

TX-7 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

0.530.550.570.590.610.630.650.670.690.710.730.750.770.790.810.83 

Ro ran 

No. of measurements 

DATA 

0.707 

0.653 

0.742 

0.706 

0.750 

0.609 

0.687 

0.759 

0.653 

0.676 

0.771 

0.731 

0.737 

0.642 

0.664 

0.655 

0.627 

0.635 

0.779 

0.771 

0.691 

0.670 

0.741 

0.713 

0.612 

0.653 

0.692 

0.660 

0.627 

0.611 

0.627 

0.704 

0.620 

0.658 

0.668 

0.676 

0.577 

0.565 

0.678 

0.685 

0.759 0.766 

0.790 0.617 

0.682 0.804 

0.772 0.656 

0.697 0.570 

0.650 0.647 

0.654 0.541 

0.686 0.640 

0.737 0.716 

0.538 0.698 

0.700 

0.731 

0.652 

0.729 

0.651 

0.613 

0.750 

0.758 

0.680 

0.603 

0.596 

0.617 

0.591 

0.739 

0.730 

0.672 

0.680 

0.780 

0.753 

0.686 

0.552 

0.681 

0.710 

0.560 

0.679 

0.810 

0.714 

0.546 

0.649 

0.743 

0.645 

0.686 

0.695 

0.601 

0.747 

0.819 

0.722 

0.731 

0.567 

0.584 

min: 0.538 max: 0.819 V-types: 4 

COMMENT 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

150
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Lab ID 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 100 ASTM 2798 

maceral type: 

Ro ran (ISO/ASTM): 0.65 

s.d.: 0.06 

5/29/2007 

187 

P. Hackley 

Paul Hackley 

Texas CBM 

telovitrinite 

9/30/2006 

channel 

TX-8 

TX-8 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

0.430.450.470.490.510.530.550.570.590.610.630.650.670.690.710.730.750.770.790.81 

Ro ran 

No. of measurements 

DATA 

0.603 

0.590 

0.624 

0.632 

0.682 

0.576 

0.653 

0.561 

0.674 

0.610 

0.703 

0.724 

0.672 

0.723 

0.675 

0.661 

0.684 

0.676 

0.632 

0.565 

0.603 

0.511 

0.707 

0.674 

0.750 

0.687 

0.666 

0.703 

0.566 

0.717 

0.669 

0.545 

0.687 

0.674 

0.643 

0.619 

0.586 

0.573 

0.571 

0.676 

0.652 0.726 

0.581 0.660 

0.626 0.682 

0.600 0.663 

0.598 0.636 

0.651 0.717 

0.634 0.609 

0.675 0.641 

0.694 0.747 

0.597 0.755 

0.729 

0.645 

0.497 

0.618 

0.653 

0.640 

0.710 

0.589 

0.622 

0.691 

0.528 

0.614 

0.637 

0.669 

0.657 

0.682 

0.705 

0.651 

0.692 

0.695 

0.774 

0.627 

0.592 

0.752 

0.797 

0.706 

0.736 

0.440 

0.696 

0.602 

0.655 

0.476 

0.696 

0.703 

0.660 

0.651 

0.685 

0.702 

0.675 

0.754 

min: 0.440 max: 0.797 V-types: 4 

COMMENT 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

151
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Lab ID 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 100 ASTM 2798 

maceral type: 

Ro ran (ISO/ASTM): 0.71 

s.d.: 0.06 

5/29/2007 

188 

P. Hackley 

Paul Hackley 

Texas CBM 

telovitrinite 

9/30/2006 

channel 

TX-9 

TX-9 

0 

1 

2 

3 

4 

5 

6 

7 

8 

0.530.550.570.590.610.630.650.670.690.710.730.750.770.790.810.830.85 

Ro ran 

No. of measurements 

DATA 

0.677 

0.776 

0.686 

0.684 

0.824 

0.648 

0.774 

0.655 

0.740 

0.763 

0.784 

0.779 

0.699 

0.766 

0.728 

0.664 

0.819 

0.755 

0.690 

0.692 

0.754 

0.604 

0.701 

0.733 

0.668 

0.722 

0.755 

0.624 

0.606 

0.664 

0.578 

0.672 

0.687 

0.720 

0.763 

0.649 

0.689 

0.722 

0.538 

0.717 

0.821 0.664 

0.745 0.670 

0.822 0.671 

0.685 0.658 

0.599 0.777 

0.761 0.699 

0.696 0.743 

0.808 0.732 

0.551 0.711 

0.586 0.694 

0.747 

0.649 

0.683 

0.763 

0.787 

0.608 

0.644 

0.800 

0.812 

0.674 

0.668 

0.724 

0.705 

0.718 

0.724 

0.703 

0.781 

0.741 

0.742 

0.754 

0.763 

0.656 

0.721 

0.783 

0.699 

0.798 

0.596 

0.608 

0.630 

0.712 

0.737 

0.735 

0.779 

0.833 

0.714 

0.751 

0.702 

0.641 

0.610 

0.767 

min: 0.538 max: 0.833 V-types: 4 

COMMENT 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

152
SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Lab ID 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 100 ASTM 2798 

maceral type: 

Ro ran (ISO/ASTM): 0.60 

s.d.: 0.08 

Paul Hackley 

Texas CBM 

telovitrinite 

9/30/2006 

channel 

TX-10 

5/31/2007 

189 

P. Hackley 

TX-10 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

0.470.490.510.530.550.570.590.610.630.650.670.690.710.73 

Ro ran 

No. of measurements 

VITRINITE REFLECTANCE REPORT 

DATA 

0.489 

0.481 

0.554 

0.602 

0.514 

0.628 

0.695 

0.647 

0.478 

0.524 

0.521 

0.684 

0.496 

0.656 

0.614 

0.496 

0.606 

0.687 

0.582 

0.481 

0.634 

0.587 

0.549 

0.563 

0.640 

0.533 

0.523 

0.760 

0.593 

0.575 

0.630 

0.569 

0.638 

0.665 

0.661 

0.776 

0.623 

0.713 

0.623 

0.560 

0.627 0.516 

0.540 0.508 

0.600 0.687 

0.677 0.538 

0.633 0.760 

0.556 0.557 

0.686 0.614 

0.517 0.781 

0.542 0.625 

0.586 0.728 

0.666 

0.630 

0.502 

0.519 

0.503 

0.594 

0.517 

0.524 

0.499 

0.623 

0.776 

0.596 

0.539 

0.692 

0.605 

0.805 

0.494 

0.562 

0.643 

0.715 

0.515 

0.703 

0.661 

0.561 

0.518 

0.684 

0.533 

0.691 

0.567 

0.626 

0.601 

0.632 

0.550 

0.613 

0.569 

0.624 

0.587 

0.564 

0.514 

0.714 

min: 0.478 max: 0.805 V-types: 5 

COMMENT 

Value is significantly lower than other benches of bed (0.65-0.71). According to proximate analysis, sample contains 

2x ash yield of other benches. Organic material similar to other benches, in particular, occurrenece of telinite with 

resin-filled lumens. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

153
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Lab ID 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 100 ASTM 2798 

maceral type: 

Ro ran (ISO/ASTM): 0.64 

s.d.: 0.07 

Paul Hackley 

Texas CBM 

telovitrinite 

9/30/2006 

channel 

TX-11 

5/31/2007 

190 

P. Hackley 

TX-11 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

0.410.430.450.470.490.510.530.550.570.590.610.630.650.670.690.710.730.750.770.790.81 

Ro ran 

No. of measurements 

DATA 

0.578 

0.660 

0.578 

0.410 

0.624 

0.431 

0.476 

0.591 

0.643 

0.610 

0.506 

0.625 

0.656 

0.696 

0.651 

0.613 

0.592 

0.635 

0.662 

0.664 

0.692 

0.602 

0.555 

0.645 

0.643 

0.609 

0.652 

0.623 

0.648 

0.656 

0.682 

0.684 

0.514 

0.762 

0.630 

0.668 

0.598 

0.655 

0.728 

0.736 

0.568 

0.591 

0.608 

0.566 

0.671 

0.592 

0.731 

0.695 

0.602 

0.627 

0.590 

0.742 

0.536 

0.729 

0.660 

0.557 

0.535 

0.623 

0.722 

0.705 

0.726 

0.688 

0.704 

0.682 

0.607 

0.622 

0.699 

0.511 

0.622 

0.751 

0.596 

0.741 

0.690 

0.650 

0.631 

0.646 

0.646 

0.679 

0.647 

0.657 

0.621 

0.736 

0.647 

0.643 

0.721 

0.578 

0.693 

0.699 

0.713 

0.575 

0.738 

0.656 

0.722 

0.629 

0.665 

0.604 

0.596 

0.662 

0.799 

0.615 

min: 0.410 max: 0.799 V-types: 4 

COMMENT 

Measured value is consistent with other measurements from TX-7 through TX-10. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

154
SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Lab ID 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 100 ASTM 2798 

maceral type: 

Ro ran (ISO/ASTM): 0.54 

s.d.: 0.06 

5/31/2007 

191 

P. Hackley 

Paul Hackley 

Texas CBM 

telovitrinite 

9/30/2006 

channel 

TX-12 

TX-12 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

0.4

0.420.440.460.48

0.5

0.520.540.560.58

0.6

0.620.640.66 

Ro ran 

No. of measurements 

VITRINITE REFLECTANCE REPORT 

DATA 

0.510 

0.482 

0.554 

0.503 

0.463 

0.496 

0.481 

0.622 

0.530 

0.600 

0.416 

0.612 

0.527 

0.488 

0.629 

0.612 

0.545 

0.542 

0.430 

0.627 

0.585 

0.416 

0.657 

0.649 

0.623 

0.484 

0.545 

0.520 

0.611 

0.502 

0.658 

0.515 

0.547 

0.609 

0.515 

0.578 

0.604 

0.549 

0.519 

0.445 

0.494 0.628 

0.552 0.462 

0.551 0.485 

0.457 0.576 

0.525 0.650 

0.459 0.472 

0.622 0.610 

0.451 0.492 

0.474 0.464 

0.571 0.491 

0.637 

0.572 

0.538 

0.516 

0.405 

0.436 

0.629 

0.584 

0.519 

0.613 

0.569 

0.520 

0.632 

0.620 

0.475 

0.523 

0.578 

0.642 

0.571 

0.499 

0.634 

0.570 

0.472 

0.504 

0.478 

0.531 

0.505 

0.611 

0.530 

0.486 

0.459 

0.622 

0.607 

0.484 

0.507 

0.526 

0.504 

0.504 

0.574 

0.600 

min: 0.405 max: 0.658 V-types: 3 

COMMENT 

Sample previously was measured for maximum reflectance on the Leitz instrument. Maximum reflectance value 

determined on Leitz was 0.55%. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

155
VITRINITE REFLECTANCE REPORT 

SAMPLE INFORMATION 

Submitted by: 

Date Submitted: 

Project: 

Sample: 

Lab ID 

Sample Type 

Date Analyzed: 

Operator: 

RESULTS 

# measurements: 100 ASTM 2798 

maceral type: 

Ro ran (ISO/ASTM): 0.88 

s.d.: 0.09 

6/1/2007 

192 

P. Hackley 

Paul Hackley 

Texas CBM 

telovitrinite 

9/30/2006 

channel 

TX-13 

TX-13 

0 

1 

2 

3 

4 

5 

6 

7 

8 

9 

0.690.710.730.750.770.790.810.830.850.870.890.910.930.950.970.991.011.031.051.071.09 

Ro ran 

No. of measurements 

DATA 

0.882 

0.764 

0.861 

0.873 

0.886 

0.924 

0.831 

0.902 

0.883 

1.007 

0.955 

1.075 

1.022 

0.876 

0.875 

0.948 

1.066 

0.965 

1.071 

1.049 

0.853 

1.049 

0.795 

0.907 

1.037 

1.008 

0.801 

1.017 

0.895 

0.755 

0.809 

0.824 

0.699 

0.871 

0.844 

0.791 

0.971 

0.828 

0.712 

0.844 

0.858 0.790 

0.859 0.813 

0.824 0.879 

0.796 0.887 

1.002 0.864 

1.068 0.871 

0.833 0.861 

0.836 0.860 

0.771 0.888 

0.752 0.937 

0.973 

0.875 

0.833 

0.939 

0.899 

0.889 

1.027 

0.826 

0.815 

0.856 

0.930 

0.758 

0.776 

0.731 

0.801 

0.735 

0.928 

0.820 

0.825 

0.853 

0.860 

0.949 

0.781 

0.916 

0.915 

0.813 

0.845 

0.845 

0.994 

0.995 

0.937 

0.940 

0.877 

0.924 

0.881 

0.822 

0.882 

0.894 

0.905 

0.892 

min: 0.699 max: 1.075 V-types: 5 

COMMENT 

This sample was determined to have maximum reflectance of 0.93% on the Leitz instrument. Standard deviation is 

high. 

U.S. Department of the Interior ICCP/DOMVR/068 Eastern Energy Resources Team 

U.S. Geological Survey expires 12/31/2008 Organic Petrology Laboratory 

156
Appendix 2 


Vitrinite reflectance data from Humble 


Geochemical Testing, Inc.
 

157
Appendix 2. Vitrinite reflectance data from Humble Geochemical Testing, 

Inc. See Guevara and others (2007) for original data. 

Sample ID (depth in ft) Ro s.d. n. 

Baldwin No. 1 560-570' 0.61 0.06 27 

Baldwin No. 1 1460-1470' 0.63 0.05 19 

Morrison No.1 310-320' 0.48 0.06 65 

Morrison No.1 1350-1360' 0.52 0.05 10 

Morrison No.1 2030-2040' 0.84 0.00 1 

Furr No. 1 820-830' n.v. - -

Furr No. 1 2160-2170' 0.55 0.04 26 

Thompson No. 1 780-790' 0.52 0.06 27 

Donnell No. 1 390-400' n.v. - -

Donnell No. 1 1630-1640' 0.53 0.08 10 

n.v. = no vitrinite. 

158