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Inventories and natural gas in storage (Tables) | 3 Months Ended
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Mar. 31, 2016
Inventory Disclosure [Abstract] |
Inventories | Inventories consisted of:
| March 31, 2016 |  | March 31, 2015 |  | December 31, 2015 |
| (In thousands)
Aggregates held for resale | $ | 127,101 |  | $ | 112,029 |  | $ | 115,854 |
Asphalt oil | 52,065 |  | 89,578 |  | 36,498 |
Natural gas in storage (current) | 11,305 |  | 9,303 |  | 21,023 |
Materials and supplies | 21,645 |  | 57,073 |  | 16,997 |
Merchandise for resale | 17,441 |  | 15,688 |  | 15,318 |
Crude oil | 3,034 |  | 7,076 |  | 4,678 |
Refined products | 14,022 |  | — |  | 8,498 |
Other | 30,199 |  | 37,325 |  | 34,861 |
Total | $ | 276,812 |  | $ | 328,072 |  | $ | 253,727 |

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