That sounds good, doesn't it? A healthy increase from April to May? What they don't tell you is in April they were claiming supply was 85.1mb/d, which they've now revised down to 84.55mb/d. You have to be keeping track to notice that.

They seem to operate in exactly the same way as OPEC. It is amazing how many revisions OPEC do to the figures even 3 years afterwards to get the increases or at least minimise the decreases to the yearly and quarterly totals.

Yea, this reminds me of the Ministry of Plenty in the George Orwell novel "1984".  When the chocolate ration is decreased from 3 oz to 2 oz, it is announced to the public as an increase in the ration.  All production quotas are reported as exceeding their targets month after month even though Winston, the main character, knows the government's claims are bogus.  It is Winston's job to "rectify" the data before pulishing it for masses.  

You can read the entire eerie chapter 4 of 1984 for free here:

http://www.online-literature.com/orwell/1984/4/

creepy analogy!
Ignorance Is Strength.
Inconvenient Truths are Gorry Falsehoods

-BB