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CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
SALES AND OPERATING REVENUES: |  |  |  |
Revenues | $ 255,202 | $ 517,054 | $ 605,965 | $ 1,043,656
EXPENSES: |  |  |  |
Operating expenses (excluding depreciation, depletion and amortization) | 187,164 | 314,273 | 421,506 | 617,001
Outside coal purchases |  | 5,311 |  | 5,311
General and administrative | 13,822 | 19,521 | 27,260 | 37,333
Depreciation, depletion and amortization | 83,559 | 76,913 | 157,480 | 148,052
Asset impairments |  |  | 24,977 |
Goodwill impairment |  |  | 132,026 |
Total operating expenses | 290,302 | 448,648 | 773,745 | 870,565
INCOME (LOSS) FROM OPERATIONS | (35,100) | 68,406 | (167,780) | 173,091
Interest expense (net of interest capitalized for the three and six months ended June 30, 2020 and 2019 of $509, $238, $1,066 and $492, respectively) | (11,446) | (10,711) | (23,725) | (22,133)
Interest income | 30 | 138 | 82 | 229
Equity method investment income | 137 | 550 | 588 | 874
Equity securities income |  |  |  | 12,906
Acquisition gain |  |  |  | 177,043
Other expense | (377) | (13) | (733) | (142)
INCOME (LOSS) BEFORE INCOME TAXES | (46,756) | 58,370 | (191,568) | 341,868
INCOME TAX EXPENSE (BENEFIT) | (77) | 186 | (182) | 80
NET INCOME (LOSS) | (46,679) | 58,184 | (191,386) | 341,788
LESS: NET LOSS (INCOME) ATTRIBUTABLE TO NONCONTROLLING INTEREST | 15 | (114) | (61) | (7,290)
NET INCOME (LOSS) ATTRIBUTABLE TO ARLP | $ (46,664) | $ 58,070 | $ (191,447) | $ 334,498
EARNINGS PER LIMITED PARTNER UNIT - BASIC AND DILUTED | $ (0.37) | $ 0.44 | $ (1.51) | $ 2.57
WEIGHTED-AVERAGE NUMBER OF UNITS OUTSTANDING - BASIC AND DILUTED | 127,195,219 | 128,391,191 | 127,133,764 | 128,271,158
Coal sales |  |  |  |
SALES AND OPERATING REVENUES: |  |  |  |
Revenues | $ 236,286 | $ 461,310 | $ 550,923 | $ 937,326
EXPENSES: |  |  |  |
Operating expenses (excluding depreciation, depletion and amortization) | 187,164 | 314,273 | 421,506 | 617,001
Oil & gas royalties |  |  |  |
SALES AND OPERATING REVENUES: |  |  |  |
Revenues | 7,786 | 11,892 | 22,025 | 22,285
Transportation revenues |  |  |  |
SALES AND OPERATING REVENUES: |  |  |  |
Revenues | 5,757 | 32,630 | 10,496 | 62,868
EXPENSES: |  |  |  |
Transportation expenses | 5,757 | 32,630 | 10,496 | 62,868
Other revenues |  |  |  |
SALES AND OPERATING REVENUES: |  |  |  |
Revenues | $ 5,373 | $ 11,222 | $ 22,521 | $ 21,177

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