EXHIBIT 11 - ------------------------------------------------------------------------------------------------- HOWELL CORPORATION COMPUTATION OF EARNINGS PER SHARE (Unaudited) - ------------------------------------------------------------------------------------------------- Three Months Ended Nine Months Ended ------------------ ----------------- September 30, September 30, ------------- ------------- 1997 1996 1997 1996 ---- ---- ---- ---- (In thousands, except per share amounts) PRIMARY EARNINGS PER SHARE Computation for Statement of Earnings Reconciliation of net income per statement of earnings to amount used in calculation of earnings per share - assuming no dilution: Net earnings from continuing operations ............ $ 708 $ 1,506 $ 2,291 $ 4,505 Subtract - Dividend to preferred shareholders ...... 604 604 1,811 1,811 ------- ------- ------- ------- Net earnings from continuing operations, as adjusted ..................................... $ 104 $ 902 $ 480 $ 2,694 ======= ======= ======= ======= Discontinued operations: Net earnings (loss) from Howell Hydrocarbons (less applicable income taxes) .................. $ 54 $ 184 $ 512 $ (71) ======= ======= ======= ======= Gain on sale of Howell Hydrocarbons (less applicable income taxes) ........................ $ 245 $ 0 $ 245 $ 0 ======= ======= ======= ======= Weighted average number of common shares outstanding ..................................... 5,096 4,938 5,034 4,936 ======= ======= ======= ======= Earnings (loss) per share - assuming no dilution : Continuing operations .............................. $ 0.02 $ 0.18 $ 0.10 0.55 Discontinued operations ............................ 0.01 0.04 0.10 (0.01) Gain on sale of Howell Hydrocarbons ................ 0.05 0.00 0.05 0.00 ------- ------- ------- ------- Net earnings per share assuming no dilution ........ $ 0.08 $ 0.22 $ 0.25 $ 0.54 ======= ======= ======= ======= Additional Primary Computation - ------------------------------ Net earnings, as adjusted per primary computation above Continuing operations .............................. $ 104 $ 902 $ 480 $ 2,694 ======= ======= ======= ======= Discontinued operations ............................ $ 54 $ 184 $ 512 $ (71) ======= ======= ======= ======= Gain on sale of Howell Hydrocarbons ................ $ 245 $ 0 $ 245 $ 0 ======= ======= ======= ======= Adjustment to weighted average number of shares outstanding: Weighted average number of shares outstanding per primary computation above ...................... 5,096 4,938 5,034 4,936 Add - Dilutive effect of outstanding options (as determined by application of the treasury stock method) ................................... 298 103 188 100 ------- ------- ------- ------- Weighted average number of shares outstanding, as adjusted ........................................ 5,394 5,041 5,222 5,036 ======= ======= ======= ======= Primary earnings (loss) per share, as adjusted (a): Continuing operations .............................. $ 0.02 $ 0.18 $ 0.09 $ 0.53 Discontinued operations ............................ 0.01 0.04 0.10 (0.01) Gain on sale of Howell Hydrocarbons ................ 0.05 0.00 0.05 0.00 ------- ------- ------- ------- Net earnings per share ................................ $ 0.08 $ 0.22 $ 0.24 $ 0.52 ======= ======= ======= ======= Three Months Ended Nine Months Ended ------------------ ----------------- September 30, September 30, ------------- ------------- 1997 1996 1997 1996 ---- ---- ---- ---- (In thousands, except per share amounts) FULLY DILUTED EARNINGS PER SHARE Computation for Statement of Earnings Net earnings, as adjusted per primary computation above Continuing operations ................................................. $ 104 $ 902 $ 480 $ 2,694 ======= ======= ======= ======= Discontinued operations ............................................... $ 54 $ 184 $ 512 $ (71) ======= ======= ======= ======= Gain on sale of Howell Hydrocarbons ................................... $ 245 $ 0 $ 245 $ 0 ======= ======= ======= ======= Weighted average number of common shares outstanding, per primary computation above ............................. 5,096 4,938 5,034 4,936 ======= ======= ======= ======= Earnings (loss) per share assuming full dilution: Continuing operations .................................................... $ 0.02 $ 0.18 $ 0.10 $ 0.55 Discontinued operations ............................................... 0.01 0.04 0.10 (0.01) Gain on sale of Howell Hydrocarbons ................................... 0.05 0.00 0.05 0.00 ------- ------- ------- ------- Net earnings per share assuming full dilution ............................ $ 0.08 $ 0.22 $ 0.25 $ 0.54 ======= ======= ======= ======= Additional Fully Diluted Computation Additional adjustment to net earnings, as adjusted per fully diluted computation above: Net earnings, as adjusted per fully diluted computation above from continuing operations ............................. $ 104 $ 902 $ 480 $ 2,694 Add - Dividend to preferred shareholders ................................. 604 604 1,811 1,811 ------- ------- ------- ------- Net earnings from continuing operations, as adjusted .............................................................. $ 708 $ 1,506 $ 2,291 $ 4,505 ======= ======= ======= ======= Discontinued operations: Net earnings (loss) from Howell Hydrocarbons (less applicable income taxes) ..................................... $ 54 $ 184 $ 512 $ (71) ======= ======= ======= ======= Gain on sale of Howell Hydrocarbons (less applicable income taxes) ........................................... $ 245 $ 0 $ 245 $ 0 ======= ======= ======= ======= Additional adjustment to weighted average number of shares outstanding: Weighted average number of shares outstanding, per fully diluted computation above .................................... 5,096 4,938 5,034 4,936 Add - Dilutive effect of outstanding options (as determined by the application of the treasury stock method) .......................................................... 298 103 188 100 Shares issuable from assumed exercise of convertible preferred stock ........................................... 2,091 2,091 2,091 2,091 ------- ------- ------- ------- Weighted average number of common shares, as adjusted .............................................................. 7,485 7,132 7,313 7,127 ======= ======= ======= ======= Fully diluted earnings (loss) per share: Continuing operations .................................................... $ 0.09 $ 0.21 $ 0.31 $ 0.63 Discontinued operations .................................................. 0.01 0.03 0.07 (0.01) Gain on sale of Howell Hydrocarbons ...................................... 0.03 0.00 0.03 0.00 ------- ------- ------- ------- Fully diluted earnings per share (b) ..................................... $ 0.13 $ 0.24 $ 0.41 $ 0.62 ======= ======= ======= ======= (a) This calculation is submitted in accordance with Regulation S-K item 601(b)(11) as required by footnote 2 to paragraph 14 of APB Opinion No. 15 because it results in a dilution greater than 3% (b) This calculation is submitted in accordance with Regulation S-K item 601(b)(11) although it is contrary to paragraph 40 of APB Opinion No. 15 because it produces an anti-dilutive result. - 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