0001035917-98-000013 SC 13D 1 19980820 NASD CENTENNIAL ENERGY PARTNERS L P CENTENNIAL ENERGY PARTNERS L.L.C. CENTENNIAL ENERGY PARTNERS L.P CENTENNIAL MANAGEMENT L.L.C. G. BRYAN DUTT JOSEPH H. REICH JOSEPH H. REICH & CO., INC PETER K. SELDIN PUMPKIN FOUNDATION QUADRENNIAL PARTNERS L.P. TERCENTENNIAL ENERGY PARTNERS L.P. XANADU PARTNERS 3DX TECHNOLOGIES INC 0000915518 1311 760386601 DE 1231 SC 13D 34 005-49753 98695273 12012 WICKCHESTER SUITE 250 HOUSTON TX 77079 2815793398 12012 WICKCHESTER SUITE 250 HOUSTON TX 77079 CENTENNIAL ENERGY PARTNERS L P 0001035917 133793743 DE 1231 SC 13D 900 THIRD AVE SUITE 1801 NEW YORK NY 10022 2127535150 900 THIRD AVE SUITE 1801 NEW YORK NY 10022 SC 13D 1 000103591798000013-001-seq1-sc-13d.txt