http://www.bangkokpost.com/business/news/423486/bangchak-buys-int...

http://www.bangkokpost.com/business/news/423486/bangchak-buys-into-foreign-explorer

Gives a a bit more detail I still fail to see how having a minority stake will assist as detail below in the article

“The company expects the transaction will support increased revenue and net profit for Bangchak with a stable cash flow in the long term and expand the business and diversify risks into the international... Please credit and share this article with others using this link:http://www.bangkokpost.com/business/news/423486/bangchak-buys-into-foreign-explorer. View our policies at http://goo.gl/9HgTd and http://goo.gl/ou6Ip. © Post Publishing PCL. All rights reserved.