Complex sentence: After that, he was 2 years with Burren RPL (Eni Group) based in London working on assets in Turkmenistan, and during 2014 in China working on New ventures for EniChina based in Beijing.
Split into simpler sentences: After that, he was 2 years with Burren RPL (Eni Group) based in London working on assets in Turkmenistan. He is currently working on New ventures for EniChina based in Beijing.