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REVENUES (Tables) | 6 Months Ended
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Jun. 30, 2019
REVENUES [Abstract] |
Revenues by Major Source | The following table sets forth the Company’s revenues by major source for the three months and six months ended June 30, 2019 and 2018 (in thousands):
|  | Three months ended June 30, |  |  | Six months ended June 30, |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Marine transportation segment: |  |  |  |  |  |  |  |  |  |  |  |
Inland transportation |  | $ | 310,162 |  |  | $ | 286,920 |  |  | $ | 593,247 |  |  | $ | 539,275 |
Coastal transportation |  |  | 94,124 |  |  |  | 91,243 |  |  |  | 179,160 |  |  |  | 179,291 |
|  | $ | 404,286 |  |  | $ | 378,163 |  |  | $ | 772,407 |  |  | $ | 718,566 |
Distribution and services segment: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Oil and gas |  | $ | 198,864 |  |  | $ | 304,859 |  |  | $ | 421,965 |  |  | $ | 579,350 |
Commercial and industrial |  |  | 167,892 |  |  |  | 119,649 |  |  |  | 321,291 |  |  |  | 246,443 |
|  | $ | 366,756 |  |  | $ | 424,508 |  |  | $ | 743,256 |  |  | $ | 825,793 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 + Details
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