ONEOK FIELD SERVICES COMPANY, L.L.C. — Integrity Assurance Notification

PROGRAMOpIDs: 12498, 21252, 30629, 30630, 31286, 31531, 31534, 31582, 31712, 32109, 32363 The Applicable Operators hereby notify PHMSA of a 192.909(b) change to their Integrity Management Program. Pipeline risk was previously evaluated with a relative risk model. Pipeline risk will now be evaluated with a quantitative risk model#