ONTERRA

Oil & Gas Consultancy · Nigeria

From purchase to first oil.

Onterra Nigeria Limited develops and facilitates marginal field acquisition and production, with the people, the partners and the complete understanding of the system needed to turn a field into flowing barrels.

Scroll to explore
One understanding. The whole value chain, subsurface to sales point.

Who we are

A new name, with experience that long predates it.

Onterra Nigeria Limited is an oil & gas consultancy built around a single, hard-won competence: taking a marginal field from the moment of purchase all the way through to first oil. The company is established and proven, recently renamed, but carrying years of operational knowledge into everything we do.

We understand the system completely, the regulatory pathway, the commercial structure, the subsurface, the surface facilities and the people who make it run. And we have the manpower, consultants and partners on the ground to make a field a reality rather than a plan.

  • Complete command of how the Nigerian upstream system operates
  • In-house personnel plus a vetted network of specialist consultants
  • Capable across every activity between field purchase and market delivery
0%
Value-chain coverage, purchase to first oil
0+
Core service lines under one roof
0/7
Reachable by phone & WhatsApp
0
Partner accountable for the whole journey

What we do

Capable across every step between field and market.

Whatever happens between purchasing a field and delivering first oil to the market, we can consult on it and facilitate making it real.

01

Marginal Field Acquisition

Structuring, due diligence and facilitation of marginal field acquisitions, guiding you through bid, award and farm-in to a clean, fundable position.

02

Field Development to First Oil

End-to-end development management: subsurface evaluation, FDP, facilities, drilling and completions, all sequenced to reach first oil on schedule.

03

Wireline Services

Slickline and electric-line operations for logging, perforation, intervention and data acquisition across the life of the well.

04

Coiled Tubing

Coiled tubing interventions, clean-outs, stimulation, nitrogen lifting and well servicing to restore and sustain production.

05

Well & Production Services

Workovers, well testing, production optimisation and integrity management to keep barrels flowing efficiently and safely.

06

Contracts & Procurement

Tendering, contracting and supply-chain coordination, assembling the right vendors and terms for each phase of the project.

07

Regulatory & Commercial Consulting

Navigating approvals, compliance and commercial structuring with a complete understanding of how the system operates in Nigeria.

08

Personnel & Project Manpower

Experienced staff and specialist consultants mobilised to the ground, the people who turn a development plan into production.

The journey we manage

Purchase → First Oil.

One accountable partner across the whole arc. Here is the path we take a marginal field through.

  1. 01

    Acquisition & Purchase

    Identify, evaluate and facilitate the acquisition of the field, commercial structuring, due diligence and a clean entry.

  2. 02

    Subsurface Evaluation

    Re-interpret the reservoir, define the resource and build the case for development with confidence.

  3. 03

    Field Development Planning

    Engineer the facilities, well program and contracting strategy, the blueprint that gets to first oil.

  4. 04

    Execution & Well Delivery

    Drilling, completions, wireline and coiled tubing, mobilising people and equipment to build the wells.

  5. 05

    First Oil

    Commission, start up and bring the field online, the milestone everything is sequenced toward.

  6. 06

    Production & Market Delivery

    Optimise production and deliver crude to the market, sustaining and growing the asset's value.

Why Onterra

The system, the manpower, the partners, already in place.

Marginal fields fail when one link in the chain is missing. Our advantage is that we hold the whole chain. We know how the system operates end to end, and we have the people and consultants on the ground to act on that knowledge.

Complete system understanding

Regulatory, commercial, subsurface and surface, we see how every piece connects.

People on the ground

Manpower and specialist consultants ready to mobilise, not just advise.

Single point of accountability

One partner responsible from purchase through to first oil and market delivery.

Full service breadth

Wireline, coiled tubing, well services, contracts, coordinated under one roof.

Have a field in view? Let's get it to first oil.

Tell us where you are in the journey, acquisition, development or production, and we'll show you how we facilitate the rest.

Start the conversation

Insights & news

From the field.

Perspectives on marginal fields, Nigerian upstream and the road to first oil.

Loading insights…

Get in touch

Let's talk about your field.

Send us a note, it opens a pre-filled WhatsApp message so we get back to you fast.