EX-21 9 f10k2001_ex21.txt EXHIBIT 21 SUBSIDIARIES OF UNOCAL CORPORATION Name of Company (a) Organized under Law of -------------------------------------------------------------------------------- Union Oil Company of California, dba "UNOCAL" California Molycorp, Inc. Delaware Philippine Geothermal, Inc. California Pure Resources, Inc. (b) Delaware Titan Exploration, Inc. Delaware Pure GP, LLC Delaware Pure Resources I, Inc. Deleware Pure Resources Holdings, Inc. Nevada Pure Resources, L.P. (c) Texas 44 Canyon, LLC Colorado PK I, L.P. (d) Delaware Pure Partners, L.P. (e) Delaware PK II, L.P. (d) Delaware PK III, L.P. (d) Delaware Pure Resources Holdings, LLC Nevada HEP Pure, LP (f) Delaware HEP Partners, L.P. (g) Delaware La Plata Associates, LLC Colorado HEP Pure Acquisition, LLC Delaware Spirit Energy Management, L.L.C. Delaware Spirit Energy 76 Development, L.P. (h) Delaware Spirit Energy 76 Investment, L.L.C. Delaware Unocal Foreign Investments Inc. Delaware Unocal Geothermal of Indonesia, Ltd. Bermuda Unocal International Corporation Nevada Unocal Bangladesh Block Twelve, Ltd. (i) Bermuda Unocal Bangladesh Exploration, Ltd. (j) Bermuda Unocal Canada Limited Alberta Cal Ven Limited Alberta Northrock Resources Ltd. (k) Alberta Northrock Energy Ltd. Alberta Northrock Resources (l) Alberta Paragon Petroleum Corporation Alberta Tethys Energy, Inc. Alberta Unocal Canada Alberta Hub Limited Alberta Unocal Canada International Company Nova Scotia Unocal Ganal, Ltd. (m) Bermuda Unocal Global Ventures, Ltd. (n) Bermuda Unocal Bangladesh Blocks Thirteen and Fourteen, Ltd.Bermuda Unocal Bangladesh, Ltd. Bermuda Unocal Myanmar Offshore Co., Ltd. Bermuda Unocal Asia-Pacific Ventures, Ltd. Bermuda Unocal Indonesia, Ltd. Bermuda Unocal Indonesia Company (o) Bermuda Unocal Khazar Holdings, Ltd. (p) Bermuda Unocal Khazar, Ltd. (q) Bermuda Unocal Makassar, Ltd. (r) Bermuda Unocal Netherlands B.V. Netherlands Unocal Rapak, Ltd. (s) Bermuda Unocal Thailand, Ltd. (t) Bermuda Unocal Pipeline Company California Unocal Capital Trust Delaware -------------------------------------------------------------------------------- (Footnotes on following page.) (a) The indented companies are subsidiaries of Union Oil Company of California. Except as indicated, each entity is owned 100 percent by the entity under which it is indented. The names of approximately 220 subsidiaries are omitted inasmuch as such subsidiaries, considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary. (b) Owned 65.19 percent by Union Oil. (c) Owned 99 percent by Pure Resources Holdings, Inc. and one percent by Pure Resources I, Inc. (d) Owned 99 percent by Pure Resources, L.P. and one percent by Pure Resources I, Inc. (e) Owned 80 percent by PK I, L.P., 10 percent by PK III, L.P., 4 percent by PK II, L.P., and 1 percent by Pure Resources I, Inc. (f) Owned 99 percent by Pure Resources Holdings, LLC and one percent by Pure GP, LLC. (g) Owned 99 percent by HEP Pure, LP and 1 percent by HEP Pure Acquisition, LLC. (h) 100 percent of the general partnership interest (approximately 55 percent of the initial capital) is owned by Spirit Energy Management, L.L.C. (i) Owned 95 percent by Unocal International Corporation and 5 percent by Unocal Foreign Investments Inc. (j) Owned 96.62 percent by Unocal International Corporation and 3.38 percent by Unocal Foreign Investments Inc. (k) Owned 98.79 percent by Unocal Canada Limited, .85 percent by Unocal Canada Alberta Hub Limited, and .36 percent by Cal Ven Limited. (l) A general partnership owned 73.05 percent by Northrock Resources Ltd., 20.12 percent by Paragon Petroleum Corporation, and 4.83 percent by Northrock Energy Ltd. (m) Owned 94.49 percent by Unocal International Corporation and 5.51 percent by Unocal Foreign Investments Inc. (n) Owned 88.89 percent by Unocal International Corporation and 11.11 percent by Unocal Foreign Investments Inc. (o) A general partnership owned 53.13 percent by Unocal Indonesia, Ltd., and 46.87 percent by Unocal Canada International Company. (p) Owned 65.04 percent by Unocal International Corporation and 34.96 percent by Unocal Foreign Investments Inc. (q) Owned 65 percent by Unocal Khazar Holdings, Ltd., and 35 percent by Unocal Global Ventures, Ltd. (r) Owned 94.49 percent by Unocal International Corporation and 5.51 percent by Unocal Foreign Investments Inc. (s) Owned 95 percent by Unocal International Corporation and 5 percent by Unocal Foreign Investments Inc. (t) Owned 79.68 percent by Unocal International Corporation and 20.32 percent by Unocal Canada International Corporation. -2-