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Current energy marketing (trading activities) are when entities engage in both financial and physical trading to increase profits, manage their commodity price risk and enhance system reliability. They may trade electricity, coal, natural gas and oil. 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Costs incurred in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells. Exploration costs may be incurred both before acquiring the related property (sometimes referred to in part as prospecting costs) and after acquiring the property. Principal types of exploration costs, which include depreciation and applicable operating costs of support equipment and facilities and other costs of exploration activities, are: (i) Costs of topographical, geographical and geophysical studies, rights of access to properties to conduct those studies, and salaries and other expenses of geologists, geophysical crews, and others conducting those studies. Collectively, these are sometimes referred to as geological and geophysical or \"\"G&G\"\" costs. 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013-01-01","end":"2013-03-31","val":43000,"accn":"0001193125-14-184974","fy":2014,"fp":"Q1","form":"10-Q","filed":"2014-05-06","frame":"CY2013Q1"},{"start":"2013-01-01","end":"2013-06-30","val":43000,"accn":"0001193125-13-323602","fy":2013,"fp":"Q2","form":"10-Q","filed":"2013-08-07"},{"start":"2013-01-01","end":"2013-06-30","val":43000,"accn":"0001193125-14-300459","fy":2014,"fp":"Q2","form":"10-Q","filed":"2014-08-07"},{"start":"2013-01-01","end":"2013-09-30","val":59000,"accn":"0001193125-13-427190","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-05"},{"start":"2013-01-01","end":"2013-09-30","val":59000,"accn":"0001564590-14-005157","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-06"},{"start":"2013-07-01","end":"2013-09-30","val":16000,"accn":"0001193125-13-427190","fy":2013,"fp":"Q3","form":"10-Q","filed":"2013-11-05"},{"start":"2013-07-01","end":"2013-09-30","val":16000,"accn":"0001564590-14-005157","fy":2014,"fp":"Q3","form":"10-Q","filed":"2014-11-06","frame":"CY2013Q3"},{"start":"2013-01-01","end":"2013-12-31","val":107000,"accn":"0001193125-14-062843","fy":2013,"fp":"FY","form":"10-K","filed":"2014-02-21"},{"start":"2013-01-01","end":"2013-12-31","val":107000,"accn":"0001564590-15-001123","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-02"},{"start":"2013-01-01","end":"2013-12-31","val":107000,"accn":"0001564590-16-015670","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-30","frame":"CY2013"},{"start":"2014-01-01","end":"2014-12-31","val":-3499000,"accn":"0001564590-15-001123","fy":2014,"fp":"FY","form":"10-K","filed":"2015-03-02"},{"start":"2014-01-01","end":"2014-12-31","val":-3499000,"accn":"0001564590-16-015670","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-30","frame":"CY2014"},{"start":"2015-01-01","end":"2015-03-31","val":892000,"accn":"0001564590-15-003412","fy":2015,"fp":"Q1","form":"10-Q","filed":"2015-05-06"},{"start":"2015-01-01","end":"2015-03-31","val":892000,"accn":"0001564590-16-019507","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-16","frame":"CY2015Q1"},{"start":"2015-01-01","end":"2015-06-30","val":3761000,"accn":"0001564590-15-006424","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-06"},{"start":"2015-01-01","end":"2015-06-30","val":3761000,"accn":"0001564590-16-023359","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-08"},{"start":"2015-04-01","end":"2015-06-30","val":2869000,"accn":"0001564590-15-006424","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-08-06"},{"start":"2015-04-01","end":"2015-06-30","val":2869000,"accn":"0001564590-16-023359","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-08","frame":"CY2015Q2"},{"start":"2015-01-01","end":"2015-09-30","val":46520000,"accn":"0001564590-15-009791","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-01-01","end":"2015-09-30","val":46520000,"accn":"0001564590-16-028596","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2015-07-01","end":"2015-09-30","val":42759000,"accn":"0001564590-15-009791","fy":2015,"fp":"Q3","form":"10-Q","filed":"2015-11-06"},{"start":"2015-07-01","end":"2015-09-30","val":42759000,"accn":"0001564590-16-028596","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2015Q3"},{"start":"2015-01-01","end":"2015-12-31","val":53451000,"accn":"0001564590-16-015670","fy":2015,"fp":"FY","form":"10-K","filed":"2016-03-30","frame":"CY2015"},{"start":"2016-01-01","end":"2016-03-31","val":837000,"accn":"0001564590-16-019507","fy":2016,"fp":"Q1","form":"10-Q","filed":"2016-05-16","frame":"CY2016Q1"},{"start":"2016-01-01","end":"2016-06-30","val":835000,"accn":"0001564590-16-023359","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-08"},{"start":"2016-04-01","end":"2016-06-30","val":-2000,"accn":"0001564590-16-023359","fy":2016,"fp":"Q2","form":"10-Q","filed":"2016-08-08","frame":"CY2016Q2"},{"start":"2016-01-01","end":"2016-09-30","val":838000,"accn":"0001564590-16-028596","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09"},{"start":"2016-07-01","end":"2016-09-30","val":3000,"accn":"0001564590-16-028596","fy":2016,"fp":"Q3","form":"10-Q","filed":"2016-11-09","frame":"CY2016Q3"}]}},"GasAndOilAcreageUndevelopedNet":{"label":"Gas 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