China oil giants' overseas buying spree loses steam
Big oil companies are wary amid a campaign against corruptional though smaller firms are more active in buying foreign assets

Outbound acquisitions by the mainland's state-owned oil and gas majors have fallen after a buying spree over the past few years, and officials are cautious on doing deals amid a protracted anti-corruption campaign by the central authorities in Beijing.

Smaller operators are seen by some as potential beneficiaries of measures announced by Beijing last month to smooth procedures for overseas investments.
The measures, which came into effect last week, allow domestic firms to invest overseas without prior approval, although they must first register their investment with the authorities. A potential snag for energy companies is that investments in industries or countries deemed sensitive will still require approval.