EXHIBIT 10.7(b) AMENDMENT NO. 1 TO VASTAR RESOURCES, INC. SPECIAL TERMINATION ALLOWANCE PLAN ------------------------- Pursuant to the power of amendment reserved therein, the Vastar Resources, Inc. Special Termination Allowance Plan (the "Plan") is hereby amended effective as of May 1, 1998. Attachment 1 to the Plan is amended to read as attached. Executed this 21st day of May, 1998. ATTEST VASTAR RESOURCES, INC. BY: /s/ Jon Edelfelt BY: /s/ Jeffrey M. Bender ------------------------------- -------------------------------- JONATHAN D. EDELFELT JEFFREY M. BENDER Associate Secretary Vice President Human Resources ATTACHMENT 1 SPECIAL TERMINATION ALLOWANCE COMPANY SERVICE VS. WEEKS OF PAY COMPLETED PLUS COMPLETED DAYS OF SERVICE SINCE PRIOR ANNIVERSARY DATE YEAR OF SERVICE 0-30 31-61 62-91 91-121 122-152 153-182 183-212 213-243 244-273 274-303 304-334 335-364 - --------------- ---- ----- ----- ------ ------- ------- ------- ------- ------- ------- ------- ------- 0 04.00 04.00 04.00 04.00 04.00 04.00 04.00 04.00 04.00 04.00 04.00 04.00 1 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 2 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 3 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 12.00 4 12.00 12.25 12.50 12.75 13.00 13.25 13.50 13.75 14.00 14.25 14.50 14.75 5 15.00 15.25 15.50 15.75 16.00 16.25 16.50 16.75 17.00 17.25 17.50 17.75 6 18.00 18.25 18.50 18.75 19.00 19.25 19.50 19.75 20.00 20.25 20.50 20.75 7 21.00 21.25 21.50 21.75 22.00 22.25 22.50 22.75 23.00 23.25 23.50 23.75 8 24.00 24.25 24.50 24.75 25.00 25.25 25.50 25.75 26.00 26.25 26.50 26.75 9 27.00 27.25 27.50 27.75 28.00 28.25 28.50 28.75 29.00 29.25 29.50 29.75 10 30.00 30.25 30.50 30.75 31.00 31.25 31.50 31.75 32.00 32.25 32.50 32.75 11 33.00 33.25 33.50 33.75 34.00 34.25 34.50 34.75 35.00 35.25 35.50 35.75 12 36.00 36.25 36.50 36.75 37.00 37.25 37.50 37.75 38.00 38.25 38.50 38.75 13 39.00 39.25 39.50 39.75 40.00 40.25 40.50 40.75 41.00 41.25 41.50 41.75 14 42.00 42.25 42.50 42.75 43.00 43.25 43.50 43.75 44.00 44.25 44.50 44.75 15 45.00 45.25 45.50 45.75 46.00 46.25 46.50 46.75 47.00 47.25 47.50 47.75 16 48.00 48.25 48.50 48.75 49.00 49.25 49.50 49.75 50.00 50.25 50.50 50.75 17 51.00 51.25 51.50 51.75 52.00 52.25 52.50 52.75 53.00 53.25 53.50 53.75 18 54.00 54.25 54.50 54.75 55.00 55.25 55.50 55.75 56.00 56.25 56.50 56.75 19 57.00 57.25 57.50 57.75 58.00 58.25 58.50 58.75 59.00 59.25 59.50 59.75 20 60.00 60.25 60.50 60.75 61.00 61.25 61.50 61.75 62.00 62.25 62.50 62.75 21 63.00 63.25 63.50 63.75 64.00 64.25 64.50 64.75 65.00 65.25 65.50 65.75 22 66.00 66.25 66.50 66.75 67.00 67.25 67.50 67.75 68.00 68.25 68.50 68.75 23 69.00 69.25 69.50 69.75 70.00 70.25 70.50 70.75 71.00 71.25 71.50 71.75 24 & Over 72.00