CACrown ArchivesThe cinema collection
Menu
Research dossier · History & Society

TGS-NOPEC Geophysical Company

company

Layered newspapers, civic records and oral-history reels arranged as chronological evidence
History and societyInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 2, 2026
Entity authorityQ1476386
Source-derived summary

TGS, formerly TGS NOPEC Geophysical Company ASA is an energy data and analytics company. It gathers, interprets, and markets seismic and geophysical data regarding subsurface terrains worldwide in order to evaluate oil and gas formations for drilling operations. TGS is listed on the Oslo Stock Exchange, was founded by a 1998 merger of TGS (Tomlinson Geophysical Services Inc.), Calibre Geophysical Co. Inc (founded in 1981), and NOPEC (Norwegian Petroleum Exploration Consultants) International ASA founded in 1981, with financial headquarters in Oslo, Norway and operational headquarters in Houston, Texas.

The Company is led by CEO Kristian Johansen with nearly 2,000 employees around the globe with main offices located in Oslo, Houston, London, Rio de Janeiro and Perth.

Editorial summary

Begin with the source’s own compact description: “TGS-NOPEC Geophysical Company” is company. The dossier treats that line as a proposition to test through TGS-NOPEC, Geophysical and Company, not as a finished interpretation.

Editorial reviewMost valuable as an event-and-institution map that identifies actors, dates and record creators for deeper historical inquiry. The current lead gives the account dated anchors—1998, 1981—that can be checked directly. The linked authority record independently contributes the date 1998. For this dossier, TGS-NOPEC, Geophysical and Company is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “company” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Contemporary correspondence, administrative files and participant testimony can test how later narratives organized the event or institution. The source revision retrieved here is dated Sep 2, 2026. The linked authority identifier is Q1476386. VIAF identifies the subject as 149140733. The Library of Congress control number is n2006051829. 2 of 5 selected statements include explicit references; 2 carry qualifiers and 0 use preferred rank. The first chronological checks are 1998 and 1981.

Critical limits

Institutional narratives can privilege the records that survived while minimizing voices that were never formally collected. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Compare institutional narratives with records created by participants and affected communities. Dates and formal titles are useful anchors, but not substitutes for context.

Best used for
  • Event chronology
  • Institutional context
  • Locating named record creators
Verify next

Contemporary correspondence, government or organizational records, oral histories and cited historical scholarship.

Three-step research path

  1. Establish the record: confirm the title “TGS-NOPEC Geophysical Company”, its source revision and the description used here.
  2. Expand the search: follow TGS-NOPEC Geophysical Company primary sources, TGS-NOPEC Geophysical Company archive and TGS-NOPEC research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “TGS-NOPEC Geophysical Company”?
  2. Who created the surviving record, and for what administrative purpose?
  3. Which voices are present, absent or mediated by the institution?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from TGS-NOPEC Geophysical Company” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.