Ann: Batu Tuhup Jetty Update, page-46

So Turtle, you as a geologist involved in the Maruwai Basin know that naughty BHP mapped the entire Maruwai Basin from the Barito River to Kalimantan/Indonesian border in the north. Many Thousands of outcrops due to the past turbulent geology of the region, were measured, sampled and mapped. In the end they took up about 800,000 Ha in 7 CCoWs Rejected other CCoWs like PT AKT PTMGM etc. BHP were sensitive to being accused of locking up 100% of Indonesia's coking coal resource. (so they locked up 85%)
So even more naughty Indonesian geologists stole the data from BHP, sold to shady characters that sold to the likes of CKA.