![David Alexander Johnston](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
David Alexander Johnston is currently a Director at Smart Fibres Ltd., Baroid Ltd., Halliburton Ltd., Petroleum Manufacturing Services Ltd., WellDynamics International Ltd., Halliburton Energy Services Ltd., Landmark Eame Ltd., Neftex Petroleum Consultants Ltd., and Mediterranean Energy Services Ltd. He was formerly a Director at Darcy Technologies Ltd. from 2016 to 2019 and at Halliburton Global Holdings Ltd.
| Companies | Position | Start |
|---|---|---|
WellDynamics International Ltd.
 WellDynamics International Ltd. Packaged SoftwareTechnology Services Provides completion technology to the oil industry | Director/Board Member | - |
Landmark Eame Ltd.
 Landmark Eame Ltd. Packaged SoftwareTechnology Services Develops software for oil and gas industry | Director/Board Member | 01/08/2011 |
Halliburton Energy Services Ltd.
 Halliburton Energy Services Ltd. Financial ConglomeratesFinance Functions as an investment holding company | Director/Board Member | 24/10/2007 |
Halliburton Ltd.
 Halliburton Ltd. Contract DrillingIndustrial Services Engages in drilling, formation, evaluation and well construction of oilfields | Director/Board Member | - |
Baroid Ltd.
 Baroid Ltd. Financial ConglomeratesFinance Functions as an investment holding company | Director/Board Member | 01/07/2009 |
Neftex Petroleum Consultants Ltd.
 Neftex Petroleum Consultants Ltd. Miscellaneous Commercial ServicesCommercial Services Provides geosciences consultancy, development of products and services to support the resource exploration industries | Director/Board Member | 12/06/2014 |
Mediterranean Energy Services Ltd.
 Mediterranean Energy Services Ltd. Oilfield Services/EquipmentIndustrial Services Provides support services for oil and gas industry | Director/Board Member | 06/04/2015 |
| Companies | Position | End |
|---|---|---|
Darcy Technologies Ltd.
 Darcy Technologies Ltd. Information Technology ServicesTechnology Services Develops sand control technology | Director/Board Member | 31/12/2019 |
Smart Fibres Ltd.
 Smart Fibres Ltd. Electrical ProductsProducer Manufacturing Provides optical fiber sensor solutions | Director/Board Member | - |
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| ░░░░░░░░░ ░░░░░░░░░░░░░ ░░░░░░░░ ░░░░ | ░░░░░░░░░░░░░░ ░░░░░░ | - |
Active
Inactive
Listed companies
Private companies
| Private companies | 11 |
|---|---|
Smart Fibres Ltd.
Smart Fibres Ltd. Electrical ProductsProducer Manufacturing Provides optical fiber sensor solutions | Producer Manufacturing |
Baroid Ltd.
Baroid Ltd. Financial ConglomeratesFinance Functions as an investment holding company | Finance |
Halliburton Ltd.
Halliburton Ltd. Contract DrillingIndustrial Services Engages in drilling, formation, evaluation and well construction of oilfields | Industrial Services |
Petroleum Manufacturing Services Ltd.
 Petroleum Manufacturing Services Ltd. Miscellaneous Commercial ServicesCommercial Services Provides business support services | Commercial Services |
WellDynamics International Ltd.
WellDynamics International Ltd. Packaged SoftwareTechnology Services Provides completion technology to the oil industry | Technology Services |
Halliburton Energy Services Ltd.
Halliburton Energy Services Ltd. Financial ConglomeratesFinance Functions as an investment holding company | Finance |
Landmark Eame Ltd.
Landmark Eame Ltd. Packaged SoftwareTechnology Services Develops software for oil and gas industry | Technology Services |
Darcy Technologies Ltd.
Darcy Technologies Ltd. Information Technology ServicesTechnology Services Develops sand control technology | Technology Services |
Neftex Petroleum Consultants Ltd.
Neftex Petroleum Consultants Ltd. Miscellaneous Commercial ServicesCommercial Services Provides geosciences consultancy, development of products and services to support the resource exploration industries | Commercial Services |
Halliburton Global Holdings Ltd.
 Halliburton Global Holdings Ltd. Financial ConglomeratesFinance Operates as an investment holding company | Finance |
Mediterranean Energy Services Ltd.
Mediterranean Energy Services Ltd. Oilfield Services/EquipmentIndustrial Services Provides support services for oil and gas industry | Industrial Services |
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