| 21. | Most of the dead were suffocated by toxic gas that spewed from the coal bed and ignited, state media reported.
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| 22. | Pennaco produces coal bed methane gas from over 400, 000 acres of land in Wyoming's Powder River Basin and Montana.
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| 23. | Continuous-type accumulations include fractured shale and fractured chalk oil and gas, basin-centered gas, coal bed gas, and tight reservoir gas.
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| 24. | An area in the vicinity of Falls Run may overlay the a coal bed known as the Buck Mountain Bed.
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| 25. | Omega also is involved in coal bed methane production in Montana, an extraction method that is opposed by environmental groups.
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| 26. | Most of the dead miners suffocated on the toxic gas that spewed from the coal bed and ignited, officials said.
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| 27. | A coal bed known as the Alton Upper Bed occurs in the vicinity of Seventy One, on the stream's western side.
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| 28. | It aims to sink 51, 000 coal bed methane wells in Wyoming over 10 years, and 26, 000 more in Montana.
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| 29. | Explosions often are blamed on lack of required ventilation equipment need to clear away gas that seeps from the coal beds.
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| 30. | Xinhua said the blast in the Xuzhou mine might have occurred in the coal bed or gas that collected in a tunnel.
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