Gas and Liquids Stored Underground and Gas and NGLs Receivables and Payables

6 Months Ended

Jun. 30, 2019

Gas Balancing Arrangements [Abstract]

Gas and Liquids Stored Underground and Gas and NGLs Receivables and Payables

Gas and Liquids Stored Underground and Gas and NGLs Receivables and Payables

The operating subsidiaries of the Company provide storage services whereby they store natural gas or NGLs on behalf of customers and also periodically hold customer gas under parking and lending (PAL) services. Since the customers retain title to the gas held by the Company in providing these services, the Company does not record the related gas on its balance sheet.

The operating subsidiaries of the Company also periodically lend gas to customers under PAL and certain firm services, and gas or NGLs may be owed to the operating subsidiaries as a result of transportation imbalances. As of June 30, 2019, the amount of gas owed to the operating subsidiaries of the Company due to gas imbalances and gas loaned under PAL and certain firm service agreements was approximately 19.5 trillion British thermal units (TBtu). Assuming an average market price during June 2019 of $2.22 per million British thermal unit (MMBtu), the market value of that gas was approximately $43.3 million. As of December 31, 2018, the amount of gas owed to the operating subsidiaries due to gas imbalances and gas loaned under PAL and certain firm service agreements was approximately 13.5 TBtu. Assuming an average market price during December 2018 of $3.68 per MMBtu, the market value of that gas was approximately $49.7 million. As of June 30, 2019, and December 31, 2018, there were no outstanding NGL imbalances owed to the operating subsidiaries. If any significant customer should have credit or financial problems resulting in a delay or failure to repay the gas owed to the operating subsidiaries, it could have a material adverse effect on the Company’s financial condition, results of operations or cash flows.