We help organisations power a cleaner future

The energy, gas and xTL industries are undergoing significant change.  Lower carbon and cleaner energy have become the new frontier for innovation as companies transition away from coal-based feedstocks.

Socio-political factors are disrupting the supply and demand equilibrium, leading to price volatility and instability, making long term planning even harder. The impact of Covid-19 has disrupted the economic cycle; and the pandemic is expected to fundamentally impact businesses which will have to now adapt quickly in order to prosper.

Achieving new efficiencies in existing operations is also vital for businesses to continue to prosper.

Energy, gas and xTL companies will need to act quickly in order to reposition their business for a new economic reality.  This transformation will require owners to have access to an unprecedented depth of experience, skill and innovation.

How we help ENERGY, GAS & xTL clients


We work with established owners, project developers, development agencies and financiers to identify opportunities, develop and implement successful energy, gas and xTL projects that deliver the necessary return on capital investment and that result in an efficient, competitive, sustainable and environmentally responsible business. We also support existing businesses to improve productivity, reliability and quality of operations. We do this through understanding the root causes of suboptimal performance, followed by interventions to address these.

Our depth of experience and expertise in the entire energy, gas, xTL value chain is unique. OTC consultants each have over 30 to 40 years’ experience typically in owner/operator roles in project and business development and operations.

How we work


We provide subject matter expertise, process facilitation, project, operations and business advisory support, with energy, gas and xTL specific experience and expertise, to our clients.

Our approach has evolved over many years being hands-on involved in strategy, business development, operations, profitability improvements as well as community relations.  Our methodology is adaptable to meet our clients unique requirements.  And, because we are a virtual team, we can effectively support our clients using online collaborative tools.

Our aim is to optimise businesses through detailed analyses of business and operations performance and identification of improvement opportunities. Opportunities are translated into either interventions ( organisational, procedural) or capital projects.

We will always ensure that business objectives are translated into project objectives.  We take on the role of owner representative and/or as members of a project team together with developers, financiers, EPC contractors and operators to optimise and deliver on shared business objectives.    We also have an extensive network of strategic partners and alliances which can be quickly drawn on to ensure the best possible outcomes.

We have developed a comprehensive knowledge base of proven best practices which we use in assignments.

Related Services and Offerings

  • Business audits and due diligence
  • OTC Toolkits
  • Technology & Product Development
  • Operations analysis and profitability improvement
  • Time and motion studies
  • Stochastic modelling
  • Oversight of EIAs
  • Hazard analysis and HAZOP studies
  • Process safety strategies and oversight 



Overview of the LNG industry

Overview of the LNG industry

In this overview of the natural gas (NG) and liquefied natural gas (LNG) industries, the emphasis is on the global LNG industry. Where applicable, brief remarks are included on LNG in southern Africa.  The purpose of this article is to provide background on the LNG...

Charl Buys

Consulting Partner, Director

Charl has over 40 years experience in engineering and business management. He has worked in the steel industry and over 30 years in petrochemical and xTL sectors. More...

Anton Putter

Consulting Partner

Anton holds a Chemical Engineering degree together with a number of advanced business qualifications in accounting, business economics and enterprise management. He has been closely involved with synthetic fuels ventures. More...


xTL refers to a family of processing technologies that synthesise liquid fuels from carbon sources such as coal, natural gas or biomass.  For example “Coal to Liquids” is often used to describe the Fisher-Tropsch process for the manufacture of synthetic fuels.

Natural Gas

Natural gas is playing an increasingly important role in the overall energy mix.  With new discoveries of both interior and offshore deposits in the Southern Africa region, liquified natural gas (LNG) represents a significant source of cheap and clean energy suited to powering the new economy.

Natural Gas means any source of methane containing gas that could be purified and liquefied and could include conventional and unconventional sources. Unconventional sources are for example, coal bed methane, coal shale gas, shale gas, biogas, and synthetic natural gas derived from gasification.


Hydrogen for Vehicular Transport

Hydrogen for Vehicular Transport

I have had very few opportunities to use a motor vehicle during the past several months of Covid-19 induced incarceration.  Not being able to travel, affords one the opportunity to reflect on what the future may hold for vehicular transport.  In other words, what will...

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Hydrogen as Energy Carrier

Hydrogen as Energy Carrier

In this article, we share some thoughts about a potential future hydrogen economy, discuss the different production routes for hydrogen, consider logistic implications of hydrogen storage and distribution, and describe some of the applications of hydrogen, and particularly transport applications.

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Crude Oil Market Dynamics 2019

Crude Oil Market Dynamics 2019

OTC published a series of three articles in early 2015 on the international crude oil market and price (Putter & Buys, 2015). This article is an update and follow-up on the 2015 articles. We thought now would be an opportune time to give an update on what...

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