How ExecGraph evaluates turnaround information

Each calendar entry separates the announced or reported work from details that remain undisclosed. The status describes the evidence behind the entry; the timing field shows how precisely the schedule is known.

Sources last reviewed: .

What the status labels mean

Confirmed: An operator disclosure, SEC filing or regulatory notice supports the stated work and its year or timing window. Confirmation of a year does not imply that exact dates have been announced.

Reported: Identifiable reporting or a transcript of an operator statement supports the entry. The attribution remains visible so readers can distinguish the report from direct operator confirmation.

Projected: The timing is a planning estimate, not an announced schedule. Prior maintenance cycles, hiring activity and project signals may inform an estimate, but do not by themselves confirm an outage.

Completed / changed: A source supports completion, cancellation, deferral or another material change. Passing the expected end date is not enough to mark work complete.

Which sources carry the most weight

Operator disclosures, SEC filings and regulatory notices take priority over trade reporting. Transcripts and contractor accounts are used for the facts they establish. Multiple republications of one report are treated as one source, not independent corroboration.

How dates and scope are presented

The calendar uses the precision available in the source: an exact date, a range of months, a season or a year. Undisclosed dates remain undisclosed in the page, downloadable calendar and search metadata.

Major turnarounds, routine maintenance and restart projects are listed separately. Routine LNG maintenance and refinery recommissioning are not counted as major refinery turnarounds.

What the service categories mean

Service categories are editorial assessments of work that may be relevant to the stated scope. They are not contractor awards, procurement commitments or invitations to bid.

How historical comparisons are used

An earlier plan can help explain the units involved or the scale of an event. It cannot establish a later schedule. Planned durations remain labeled as plans, and comparisons with other facilities are not used as forecasts of staffing or duration.

Reviews and corrections

The source-review date records when the cited material was last checked. It is distinct from a page-edit date.

Substantive changes are documented with a date and supporting source. Earlier plans remain distinguishable from revised schedules, and a deferred event is not recast as completed work.