| 41. | Some experts called the problems of the coal fields typical of what ails German industry.
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| 42. | The coal field extended northwards under the Irish Sea.
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| 43. | Western Kentucky coal field production has risen since 2004.
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| 44. | In 1874 an R . M . Waterman owned large coal fields north of town.
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| 45. | In 1950 there was development of the Ombilin coal field with Padang as its outlet.
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| 46. | The long decline of the Eastern coal fields also led many miners to leave the industry.
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| 47. | The agreement also provides for developing technologies to produce methane at coal fields in central Siberia.
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| 48. | Section Six served the coal fields between Cloverdale.
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| 49. | There are also bituminous coal fields near K�nadsa.
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| 50. | Its most-promising holdings are concessions to extract methane, a type of natural gas, from Polish coal fields.
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