Tyumen Oil, a Sidanko rival, acquired Kondpetroleum, a bankrupt oil producing subsidiary of Sidanko.
Union Pacific said an oil subsidiary, working with Oryx and Pogo, expects to begin new gas production in the Gulf of Mexico in the third quarter.
Residents of Tomsk, a Siberian city that is home to Tomskneft, one of Yukos's biggest oil subsidiaries, are also upset.
Pennzoil said it might be interested in buying Tenneco's oil subsidiary but has not decided whether to make a bid.
Gazprom has said it would like to buy back the shares in the oil subsidiary.
Every logistical firm or oil subsidiary in the United States and Europe would salivate to have that sort of contract.
Du Pont first tried the incentives program in Hobbs, N.M., where Conoco, the company's oil subsidiary, has an operation.
The stock traded in the low 40's before the announcement last May 25 that the oil subsidiary would be sold.
In past interviews he has maintained that Tenneco should not sell other divisions after the jettisoning of the oil subsidiary.
During the summer the company invited prominent foreign architects to submit plans for a proposed business center for its newly acquired oil subsidiary.