EXHIBIT 11 GIANT INDUSTRIES, INC. AND SUBSIDIARIES COMPUTATION OF PER SHARE DATA Three Months Ended Nine Months Ended September 30, September 30, ------------------------- ------------------------- 1997 1996 1997 1996 ----------- ----------- ----------- ----------- Earnings from continuing operations $ 6,596,000 $ 5,283,000 $13,395,000 $16,301,000 Discontinued operations, net (20,000) (13,000) ----------- ----------- ----------- ----------- Net earnings $ 6,596,000 $ 5,263,000 $13,395,000 $16,288,000 =========== =========== =========== =========== Weighted average number of shares outstanding during the period 11,025,763 11,231,602 11,064,597 11,247,710 =========== =========== =========== =========== Earnings per common share: Continuing operations $ 0.60 $ 0.47 $ 1.21 $ 1.45 Discontinued operations ----------- ----------- ----------- ----------- Net earnings $ 0.60 $ 0.47 $ 1.21 $ 1.45 =========== =========== =========== =========== Additional Primary Computation - ------------------------------ Earnings from continuing operations $ 6,596,000 $ 5,283,000 $13,395,000 $16,301,000 Discontinued operations, net (20,000) (13,000) ----------- ----------- ----------- ----------- Net earnings $ 6,596,000 $ 5,263,000 $13,395,000 $16,288,000 =========== =========== =========== =========== Additional adjustment to weighted average number of shares outstanding: Weighted average number of shares outstanding above 11,025,763 11,231,602 11,064,597 11,247,710 Add - dilutive effect of outstanding options(a) 140,531 122,820 118,202 115,000 ----------- ----------- ----------- ----------- Weighted average number of shares outstanding as adjusted 11,166,294 11,354,422 11,182,799 11,362,710 =========== =========== =========== =========== Earnings per common share:(b) Continuing operations $ 0.59 $ 0.46 $ 1.20 $ 1.43 Discontinued operations ----------- ----------- ----------- ----------- Net earnings $ 0.59 $ 0.46 $ 1.20 $ 1.43 =========== =========== =========== =========== /TABLE GIANT INDUSTRIES, INC. AND SUBSIDIARIES COMPUTATION OF PER SHARE DATA Three Months Ended Nine Months Ended September 30, September 30, ------------------------- ------------------------- 1997 1996 1997 1996 ----------- ----------- ----------- ----------- Fully Diluted Computation - ------------------------- Earnings from continuing operations $ 6,596,000 $ 5,283,000 $13,395,000 $16,301,000 Discontinued operations, net (20,000) (13,000) ----------- ----------- ----------- ----------- Net earnings $ 6,596,000 $ 5,263,000 $13,395,000 $16,288,000 =========== =========== =========== =========== Additional adjustment to weighted average number of shares outstanding: Weighted average number of shares outstanding above 11,025,763 11,231,602 11,064,597 11,247,710 Add - dilutive effect of outstanding options(a) 151,835 122,780 152,959 124,926 ----------- ----------- ----------- ----------- Weighted average number of shares outstanding as adjusted 11,177,598 11,354,382 11,217,556 11,372,636 =========== =========== =========== =========== Earnings per common share:(b) Continuing operations $ 0.59 $ 0.46 $ 1.19 $ 1.43 Discontinued operations ----------- ----------- ----------- ----------- Net earnings $ 0.59 $ 0.46 $ 1.19 $ 1.43 =========== =========== =========== =========== (a) As determined by the application of the treasury stock method. (b) This calculation is submitted in accordance with Regulation S-K item 601(b)(11) although not required by footnote 2 to paragraph 14 of APB Opinion No. 15 because it results in dilution of less than 3%.