The month to month information about Mexico's production has been posted previously at TOD. I can't recall where right now but I've seen it. Cantarell is the backbone of that production. That production is declining amazingly fast if you begin tracking from last year to now. If overall production is declining, and Cantarell is the largest part of Mexico's production, then there is an extremely high probability that Cantarell itself is experiencing production declines. Otherwise we must argue that the remaining 45% or so of Mexico's fields are all bearing 100% of the declines when PEMEX itself already has admitted that Cantarell is in trouble.
Here is a repost from August
If forgot to mention that this is from a public PEMEX report. I find the exploration wedge an great example of "positive thinking"