Österreichische Industrieholding AG said it has raised its shareholding in Austria’s oil and gas firm OMV Aktiengesellschaft to 50.7% effective October 15. IPIC owns 57,485,686 shares, raising its stake from 17.6% to 19.2% of the registered capital. The consortium now hold 151,985,676 shares of OMV’s registered capital of 300,000,000 OMV shares. With group sales of…