Segment results for the second quarters ended June 13, 2020, and June 15, 2019 were as follows: Second Quarter Ended, June 13, 2020 (thousands) Environmental Services Oil Business Corporate and Eliminations Consolidated Revenues Service revenues $ 46,097 $ 6,150 $  $ 52,247 Product revenues 8,295 13,568  21,863 Rental income 5,408   5,408 Total revenues $ 59,800 $ 19,718 $  $ 79,518 Operating expenses Operating costs 49,104 23,189  72,293 Operating depreciation and amortization 2,348 2,082  4,430 Profit (loss) before corporate selling, general, and administrative expenses $ 8,348 $ (5,553) $  $ 2,795 Selling, general, and administrative expenses 11,134 11,134 Depreciation and amortization from SG&amp;A 1,025 1,025 Total selling, general, and administrative expenses $ 12,159 $ 12,159 Other income - net (6,796) (6,796) Operating loss (2,568) Interest expense  net 344 344 Loss before income taxes $ (2,912) Second Quarter Ended, June 15, 2019 (thousands) Environmental Services Oil Business Corporate and Eliminations Consolidated Revenues Service revenues $ 54,332 $ 3,604 $  $ 57,936 Product revenues 10,178 31,124  41,302 Rental income 5,686 76  5,762 Total revenues $ 70,196 $ 34,804 $  $ 105,000 Operating expenses Operating costs 49,374 29,475  78,849 Operating depreciation and amortization 1,872 1,436  3,308 Profit before corporate selling, general, and administrative expenses $ 18,950 $ 3,893 $  $ 22,843 Selling, general, and administrative expenses 11,042 11,042 Depreciation and amortization from SG&amp;A 753 753 Total selling, general, and administrative expenses $ 11,795 $ 11,795 Other expense - net 1,514 1,514 Operating income 9,534 Interest expense  net 219 219 Income before income taxes $ 9,315 Segment results for the first half ended June 13, 2020, and June 15, 2019 were as follows: First Half Ended, June 13, 2020 (thousands) Environmental Services Oil Business Corporate and Eliminations Consolidated Revenues Service revenues $ 107,056 $ 8,948 $  $ 116,004 Product revenues 19,023 40,561  59,584 Rental income 11,173 21  11,194 Total revenues $ 137,252 $ 49,530 $  $ 186,782 Operating expenses Operating costs 105,508 50,035  155,543 Operating depreciation and amortization 4,618 4,136  8,754 Profit (loss) before corporate selling, general, and administrative expenses $ 27,126 $ (4,641) $  $ 22,485 Selling, general, and administrative expenses 22,656 22,656 Depreciation and amortization from SG&amp;A 1,969 1,969 Total selling, general, and administrative expenses $ 24,625 $ 24,625 Other income - net (6,525) (6,525) Operating income 4,385 Interest expense  net 558 558 Income before income taxes $ 3,827 First Half Ended, June 15, 2019 (thousands) Environmental Services Oil Business Corporate and Eliminations Consolidated Revenues Service revenues $ 107,207 $ 7,102 $  $ 114,309 Product revenues 20,315 56,845  77,160 Rental income 9,171 133  9,304 Total revenues $ 136,693 $ 64,080 $  $ 200,773 Operating expenses Operating costs 99,538 61,794  161,332 Operating depreciation and amortization 3,508 2,868  6,376 Profit (loss) before corporate selling, general, and administrative expenses $ 33,647 $ (582) $  $ 33,065 Selling, general, and administrative expenses 23,438 23,438 Depreciation and amortization from SG&amp;A 1,820 1,820 Total selling, general, and administrative expenses $ 25,258 $ 25,258 Other expense - net 1,457 1,457 Operating income 6,350 Interest expense  net 449 449 Income before income taxes $ 5,901