the AP reports this answer for the increased shut in:

"MMS said the shut-in figures did not change due to an actual decrease in production, however, but because a company that had previously not been able to do so reported production data Thursday. "

which seems to say they have a default of assuming production is OK which is a little odd.. and then the question is how many other companies are still to report.  At this point, would a company not reporting be more likely to be shut-in or not?

This is odd because it contrasts with what the MMS says about its statistics:

These cumulative numbers reflect updated production numbers from all previous reports. The reports only represent input received by 11:30 a.m. CDT. If a company does not report by 11:30 a.m. it is not included in the special information release, but it is included in the cumulative shut-in production. This may result in an apparent increase in the cumulative report amount.

which could have been a reasonable explanation for why their numbers went up today (company failed to report today), but if the AP report is saying they went up because a company did report today that seems like either the reporter misunderstood or else there is bogus data in the report.