Project · Subsea tie-back · Nigeria

Bonga North deepwater tieback

A ~US$5 bn subsea tieback — 16 wells, new risers, flowlines and umbilicals, FPSO modifications — in execution from 2025 towards first oil around 2030.

Checked by hand against the sources below (2026-10-20).

  1. Engineering (now)
  2. Fabrication (now)
  3. Transport & installation (now)
  4. Hook-up (next)
  5. Commissioning
  6. Operation

Now Engineering · Fabrication · Transport & installation (reported: execution — engineering, fabrication and installation of subsea infrastructure; FPSO modifications)

Next Hook-up · not announced

Roles Construction & supervision · Commissioning & start-up · QA/QC & HSE · Role groups per phase: our planning assumption from the Crew Forecast model.

Later Operation first oil target by the end of the decade, as reported

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Their rate stays; our fee goes on top: 20% → 15% → 12%. Open book →

Who works on it as the sources name them

  • ShellOperator / owneroperator 65% of OML 118; partners Esso E&P Nigeria 20% and Nigerian Agip Exploration 15% (after TotalEnergies' exit, completed November 2025)
  • SaipemEPC / main contractorleader of consortium (with KOA Oil & Gas and AVEON Offshore) for EPCI of risers, flowlines, subsea umbilicals and associated subsea structures; ~US$1 bn…
  • TechnipFMCEngineering & designSubsea 2.0 production systems — design and manufacture of subsea trees, manifolds, jumpers, controls and services; 'substantial' award (US$250–500 m), Dec 2024
Kind
Subsea tie-back
Country
Nigeria
Size
16 wells; up to 110,000 b/d through the Bonga FPSO
Operator
Shell
Position
4.60°N 4.70°E, approximate

Sources

  1. Saipem leading Bonga North subsea construction offshore NigeriaOffshore Magazine · published 2024-12-19 · read 2026-09-22
  2. Saipem has been awarded a new offshore contract by Shell Nigeria worth about US$1 billionSaipem · published 2024-12-19 · read 2026-10-23
  3. Bonga North Deepwater Project, NigeriaNS Energy · published 2025-01-17 · read 2026-09-22
  4. TotalEnergies completes divestment of 12.5% Bonga field stake in Nigeria for $510 millionWorld Oil · published 2025-11-25 · read 2026-10-08
  5. Shell ups equity in Nigeria's Bonga field as TotalEnergies divestsThe Energy Year · published 2025-11-27 · read 2026-10-08
  6. Shell invests in Bonga North deep-water project, NigeriaShell · published 2024-12-16 · read 2026-10-20
  7. Reforms, Investments, Partnership key to Nigeria’s energy future – SNEPCo MDShell Nigeria · published 2026-10-11 · read 2026-10-20
  8. Nigeria: TotalEnergies Completes the Divestment of its Non-Operated Interest in the Bonga FieldTotalEnergies · published 2025-11-25 · read 2026-10-20
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