Oracle Corp has acquired the assets of Apogee Open Systems Corp, Denver, Colorado-based developer of Unix and Windows financial management products for the oil and gas industry, for an undisclosed sum. Oracle will integrate Apogee’s Liberty product line with its Oracle Financials to produce a suite of new Oracle Energy products for oil and gas operations and financial management designed to facilitate migration from mainframes to client-server systems. Separately, Oracle announced that a collaboration with Intersolv Inc will enable it to offer drivers to enable users of its database to gain more direct access to data stored in the database managers of Informix Corp, Computer Associates International Inc and Sybase Inc, and to its own Oracle Rdb. It already has drivers for DB2 and NT Server.