For month-end, what variance threshold are you using on plant and pipeline mass/volume balances, and how are you documenting exceptions to satisfy audit and SOX evidence? We’re at 0.3% by stream in Quorum TIPS and spent 6 hours last close chasing a 0.12% swing from late tickets — would 0.5% with measurement uncertainty support be defensible for financial reporting?
We run 0.5% plant/pipeline with “0.3% by stream” as a watchlist, and audit was fine once we tied it to meter uncertainty and materiality. We attach a one‑page cutoff memo in TIPS each close — late-ticket log, MU calc per API MPMS with a link (American Petroleum Institute | API | Standards), and a roll‑forward — anything over 0.5% or $X triggers RCA so we’re not chasing ghosts at 11 p.m. Would your auditors accept that memo plus MU support as the SOX evidence?