(LVD.) EKHO Project Consortium: Press Release.

Business Editors

VANCOUVER, B.C.--(BUSINESS WIRE)--June 5, 2000

Aster Ventures Corp (CDNX:ASV.) CVL Resources (CDNX:CVL.) Curion Venture Corp (CDNX:CUV.) Lucre Ventures Ltd. (CDNX:LVD.) Berkshire International Mining Ltd.(CDNX:BKR.)

Further to the press release dated May 10, 2000, David Patterson, Chairman of the EKHO Project Consortium, is pleased to announce that the Completion Phase of the EKHO #1 well has finished ahead of schedule and that Production Testing has begun.

The Production Testing Phase is budgeted to last 30 days. Results will be released as appropriate.

Nine Canadian Venture Exchange (CDNX) resource companies and various individual investors have funded the EKHO No. 1. The EKHO Consortium includes, Aster Ventures Corp, (ASV.V) 20%, Curion Venture Corp. (CUV.V) 20%, Lucre Ventures Ltd. (LVD.V) 12%, Berkshire International Mining Ltd. (BKR.V) 10%, CVL Resources (CVL.V) 9.64%, Consolidated Bradbury International Equities (CBN.V) 5%, Curlew Lake Resources (CWQ.V) 5%, Pan Ocean Explorations (POE.V) 5% and Prairie Pacific Energy Corporation (PRP.V) 5%.

Tri-Valley Corporation is the publicly traded parent (OTCBB:TRIL) of Tri-Valley Oil & Gas Co., EKHO Project operator.

On Behalf of the EKHO Project Consortium "David Patterson" Chairman

The Canadian Venture Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of this release.