MILLENNIUM CHEMICALS INC. EXHIBIT 11.1 COMPUTATION OF PER SHARE EARNINGS BASIC WEIGHTED AVERAGE # SHARES - ----------- -------------------------- YEAR SHARES QUARTER TO DATE ------------ -------------------------- Shares of common stock outstanding at December 31, 1998 75,170,692 75,170,692 75,170,692 Shares repurchased: January (82,800) (82,800) (82,800) February (1,240,300) (1,240,300) (1,102,489) March (1,449,500) (1,449,500) (1,127,389) April (639,000) (639,000) (426,000) May (2,125,100) (2,125,100) (1,180,611) June (1,651,100) (1,651,100) (733,822) July (435,200) (435,200) (145,067) August (1,270,600) (847,067) (282,356) Shares issued: April 6,000 6,000 4,000 June 3,000 3,000 1,333 August 8,960 5,973 1,991 ------------ ------------ ------------ Shares of common stock outstanding at September 30, 1999 66,295,052 66,715,598 70,097,482 ============ ============ ============ Income from continuing operations 38,000,000 64,000,000 ------------ ------------ Weighted averages shares outstanding 66,715,598 70,097,482 Basic earnings per share 0.57 0.91 Income from continuing operations 45,000,000 102,000,000 ------------ ------------ Weighted averages shares outstanding 66,715,598 70,097,482 Basic earnings per share 0.68 1.46 Shares of common stock outstanding at December 31, 1999 66,508,567 66,508,567 66,508,567 Shares repurchased: March (1,382,300) (1,382,300) (1,075,122) April (100,000) (100,000) (66,667) May (853,000) (853,000) (473,889) June (1,164,700) (1,164,700) (517,644) Shares issued: January 10,594 10,594 10,594 February 220,378 220,378 195,892 May 5,000 5,000 2,778 ------------ ------------ ------------ Shares of common stock outstanding at September 30, 2000 63,244,539 63,244,539 64,584,509 ============ ============ ============ Income from continuing operations 35,218,000 108,197,000 ------------ ------------ Weighted averages shares outstanding 63,244,539 64,584,509 Basic earnings per share 0.56 1.68 Income from continuing operations 35,218,000 108,197,000 ------------ ------------ Weighted averages shares outstanding 63,244,539 64,584,509 Basic earnings per share 0.56 1.68 MILLENNIUM CHEMICALS INC. EXHIBIT 11.1 COMPUTATION OF PER SHARE EARNINGS DILUTED WEIGHTED AVERAGE # SHARES ----------- -------------------------- YEAR SHARES QUARTER TO DATE ------------ -------------------------- Shares of common stock outstanding at December 31, 1998 75,170,692 75,170,692 75,170,692 Shares repurchased: January (82,800) (82,800) (82,800) February (1,240,300) (1,240,300) (1,102,489) March (1,449,500) (1,449,500) (1,127,389) April (639,000) (639,000) (426,000) May (2,125,100) (2,125,100) (1,180,611) June (1,651,100) (1,651,100) (733,822) July (435,200) (435,200) (145,067) August (1,270,600) (847,067) (282,356) Shares issued: April 6,000 6,000 4,000 June 3,000 3,000 1,333 August 8,960 5,973 1,991 Options 547,000 52,875 48,125 Time vested restricted stock 605,368 469,406 467,490 Performance based restricted stock 1,816,104 212,774 211,952 ------------ ------------ ----------- Shares of common stock outstanding at September 30, 1999 69,263,524 67,450,653 70,825,049 ============ ============ ============ Income from continuing operations 38,000,000 64,000,000 ------------ ------------ Weighted averages shares outstanding 67,450,653 70,825,049 Diluted earnings per share 0.56 0.90 Income from continuing operations 45,000,000 102,000,000 ------------ ------------ Weighted averages shares outstanding 67,450,653 70,825,049 Diluted earnings per share 0.67 1.44 Shares of common stock outstanding at December 31, 1999 66,508,567 66,508,567 66,508,567 Shares repurchased: March (1,382,300) (1,382,300) (1,075,122) April (100,000) (100,000) (66,667) May (853,000) (853,000) (473,889) June (1,164,700) (1,164,700) (517,644) Shares issued: January 10,594 10,594 10,594 February 220,378 220,378 195,892 May 5,000 5,000 2,778 Options 592,000 - - Time vested restricted stock 608,624 496,233 506,984 Performance based restricted stock 241,542 122,893 134,242 ----------- ------------ ----------- Shares of common stock outstanding at September 30, 2000 64,686,705 63,863,665 65,225,735 ============ ============ =========== Income from continuing operations 35,218,000 108,197,000 ------------ ------------ Weighted averages shares outstanding 63,863,665 65,225,735 Diluted earnings per share 0.55 1.66 Income from continuing operations 35,218,000 108,197,000 ------------ ------------ Weighted averages shares outstanding 63,863,665 65,225,735 Diluted earnings per share 0.55 1.66