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Rhino Resources Ltd  is a private company exploring for energy sources and helium in Africa. Its South African subsidiary Rhino Oil and Gas Exploration South Africa Pty Ltd holds onshore exploration licences with biogenic gas, helium and native hydrogen potential.

Rhino was recapitalised with European and American investment in late 2021 and mandated to seek value through the energy mix with a strong focus on all aspects of Environmental, Social and Governance principles (ESG).

Our ambition is to help unlock structural deficiencies in the South African energy system, such as a robust reactive power generation network underpinned by reliable energy resources, catalysing the vast potential of renewable energy in South Africa.

Environmental, Social and Governance

Producing gas whilst maintaining clean air, water, arable land, and livelihoods is not only Rhino’s commitment but our foundational principle.


Rhino has no interest or ambition in exploring for shale gas or the associated use of hydraulic fracturing  (fracking).

From a technical perspective there is no merit to undertake fracking of shales on any part of Rhino’s licenced acreage, today or in the future.

Rhino has no interest or ambition in exploring for shale gas or the associated use of hydraulic fracturing.

We strongly believe our activities must align with the values and interests of the communities in which we operate. We have sought to personally engage as broadly as possible, to explain our purpose and principles, hear and understand any concerns, and align on the proposed activities.
Social Impact
Our proposed exploration corresponds closely with drilling water wells and assay wells: activities very familiar to the Free State. In the event of success, as we move to production we will need to train and employ locally, as well as contract for various business services.
Environmental Sustainability
We aim to replace electricity generated by highly polluting and outdated coal-fired power plants by introducing cleaner generation from a domestic gas resource, contributing to the necessary grid flexibility which would unlock South Africa’s extensive solar/wind power potential.
Energy Equality
Our ambition is to help alleviate South Africa’s energy crisis by discovering local, dependable, and affordable energy resources, which can be used to reliably power the economy, equitably enable social development, and generate tax revenues for broader growth.
Bespoke Hydrocarbon Exploration
Rhino South Africa is focused on onshore exploration.
Per the National Environmental Management Act (NEMA), we are currently undertaking Environmental Impact Assessments (EIAs) and have contracted SLR as the independent Environment Assessment Practitioner (EAP) to prepare for future exploration drilling activities on ER294 and ER318.
Methane is a reliable, flexible fuel that in comparison to coal, offers significant improvements in water (no acid mine runoff) and air quality (no particulates, much lower CO2 emissions/kW, etc.).

Helium is a rare noble gas with unique thermochemical properties that make it essential for medical imaging, high-tech manufacturing, quantum computing and space exploration.

Naturally-produced hydrogen (H2) may be present, providing a completely carbon-free, easily-utilized energy source that produces pure water vapor as a by-product.
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AAs early as the 1920s, gold miners south of Johannesburg were surprised to encounter methane gas flowing out of assay boreholes drilled into ancient quartzites, with little explanation as to its origin. Termed “blower” wells, hundreds of these were drilled throughout the region over the next several decades as gold (and platinum) mining progressed deeper into the subsurface. Methane was recognized as a significant and near-ubiquitous hazard,  yet a convincing description of its origin puzzled geoscientists for decades. This is because most natural gas is derived from the thermal degradation of ancient organic matter, or kerogen, that lived millions to hundreds of millions of years ago. The rocks hosting these gold and platinum deposits are billions of years old, and lack the organic matter necessary to generate hydrocarbons.


It wasn’t until the early 2000s that a more credible explanation for the gas was discovered: a class of organisms called archaea are actively generating biogenic methane. Despite being a primitive life-form found in a variety of habitats, including the rumens of cattle, archaea were unknown to biology until the 1970s. In part this is because archaea tends to thrive in places where other organisms with more efficient metabolic pathways, such as bacteria, cannot exist. These “extremophiles” are found in environments where high temperatures, anoxia, salinities, and pH may preclude other life. Many archaea are methanogenic, creating methane as a metabolic product of partially-degraded organic material or by combining free hydrogen with carbon. In the case of the “blower wells”, geologic evidence supports the latter mechanism.


The mystery of the biogenic methane does not necessarily end with the recognition that archaea are involved. Their metabolism requires hydrogen, which is the most abundant element in the universe, and also one of the rarest to find in large concentrations as a pure gas. Hydrogen is not only the elemental building block for the universe, it is also a critical constituent for life—most directly for archaea. Free hydrogen in the biosphere is relatively rare, as organisms like archaea will convert it to methane if provided the opportunity. On earth, there are two processes that are currently believed to be responsible to create volumetrically-significant free hydrogen: radiolysis and hydration of iron silicates. Radiolysis is the process whereby radioactive decay splits water molecules into its constituent ions, liberating hydrogen. In the subsurface, the naturally-occurring radionuclides uranium, thorium, and potassium are responsible for most of this production. Hydration of iron silicates is another means of hydrogen production, where the alteration of minerals into more stable phases also liberates hydrogen. In South Africa, the widespread occurrence of basaltic dikes and intrusions across the Karoo are likely candidates for hydrogen production, as are more ancient lava flows (like the 2.7 billion-year-old Ventersdorp Group or the 2.3 billion-year-old Pretoria and Rooiberg groups of the Transvaal Supergroup). Notably, hydrogen has been found within the blower wells and free gas encountered in the deep mines in low concentrations as a mixture with methane.


As mentioned above, radioactivity may play an important, but indirect, role in sustaining a habitat for archaea. Naturally-occurring radioactive elements uranium and thorium also produce another important product as it decays: helium. The helium diffuses out of the mineralogic hosts of the uranium and thorium and gets dissolved into pore water that exists in small fractures and voids in the subsurface. The helium likely remains dissolved as an undersaturated species in subsurface fluids, but is “vapor stripped” or partitioned into the rising methane bubbles that are produced by archaea as it rises buoyantly through the water-filled fractures. Ultimately, mixtures of predominantly methane, along with helium and nitrogen, can be found in fractures and faults of the ancient “basement” rocks underlying the Free State of South Africa, or on occasion, in the sandstones and coal seams of the Permian Karoo Supergroup that overlies it.


Rhino Resources is exploring for these subsurface accumulations of helium and biogenic methane within South Africa.

Office Address
Icon Building, 24 Hans Strijdom Avenue
Foreshore, Cape Town, 8001
South Africa
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PHONE: +27 21 140 0920