The article says, clearly, that India is willing to pay $2.7 billion for TEN PERCENT of Tullow's 600M barrel find, valuing it at $27B dollars. That's $45 per barrel. The article further says that that number is likely to change because current appraisal drilling should boost the proven to over 1 billion barrels.
That $2.7B is only going up. the LAPSSET pipeline has turn black gold into tangible, shiny, REAL gold.
That's the Kaabooom, and the math is why management is buying... lots of shares.
People maintain anonymity for a reason and it is rarely noble.