XML 97 R60.htm IDEA: XBRL DOCUMENT
v3.25.2

Organization and Principal Activities - Summary of Detailed Information About Details of Subsidiaries (Details) | 12 Months Ended
--- | ---
Mar. 31, 2025
OMS Holdings Pte. Ltd. |
Organization and principal activities [line items] |
Entity | OMS Holdings Pte. Ltd.
Date of incorporation | May 04, 2010
Place of incorporation | Singapore
Ownership | 100.00%
Principal activities | Investment holding
OMS Oilfield Services Pte. Ltd. |
Organization and principal activities [line items] |
Entity | OMS Oilfield Services Pte. Ltd.
Date of incorporation | Jun. 21, 1972
Place of incorporation | Singapore
Ownership | 100.00%
Principal activities | Provision of premium threading and manufacturing of pipe connectors and joints used in the oil and gas industry
OMS Oilfield Services Arabia Ltd. |
Organization and principal activities [line items] |
Entity | OMS Oilfield Services Arabia Ltd.
Date of incorporation | May 07, 2008
Place of incorporation | Saudi Arabia
Ownership | 100.00%
Principal activities | Production of pipes, tubes, extensions and related accessories for use in drilling for oil exploration projects
OMS Oilfield Holdings Sdn. Bhd. |
Organization and principal activities [line items] |
Entity | OMS Oilfield Holdings Sdn. Bhd.
Date of incorporation | Jul. 04, 1977
Place of incorporation | Malaysia
Ownership | 100.00%
Principal activities | Investment holding
OMS Oilfield Services Sdn. Bhd. |
Organization and principal activities [line items] |
Entity | OMS Oilfield Services Sdn. Bhd.
Date of incorporation | Aug. 19, 1980
Place of incorporation | Malaysia
Ownership | 49.00%
Principal activities | Provision of machine shop service for tools and equipment in the oil and gas industry
PT OMS Oilfield Services (Indonesia) |
Organization and principal activities [line items] |
Entity | PT OMS Oilfield Services
Date of incorporation | Apr. 05, 2001
Place of incorporation | Indonesia
Ownership | 95.00%
Principal activities | Provision of premium threading and repair services, inspection services and tubular running services, and selling tubular accessories for oil and gas industry
OMS Oilfield Services (Thailand) Ltd. |
Organization and principal activities [line items] |
Entity | OMS Oilfield Services (Thailand) Ltd.
Date of incorporation | Aug. 26, 2003
Place of incorporation | Thailand
Ownership | 100.00%
Principal activities | Manufacture and repair of drilling tools, drilling tubular tools and drilling accessories for oil and gas industry
PY Oiltools Sdn Bhd, |
Organization and principal activities [line items] |
Entity | PY Oiltools Sdn. Bhd.
Date of incorporation | Mar. 15, 1999
Place of incorporation | Brunei
Ownership | 70.00%
Principal activities | Provision of repairs and services and the sale of equipment used in the oil and gas industry
Top Pentagon Sdn. Bhd. |
Organization and principal activities [line items] |
Entity | Top Pentagon Sdn. Bhd.
Date of incorporation | Jan. 05, 2010
Place of incorporation | Malaysia
Ownership | 20.00%
Principal activities | Investment holding
OMS Oilfield Services (Australia) Pty Ltd. |
Organization and principal activities [line items] |
Entity | OMS Oilfield Services (Australia) Pty Ltd.(2)
Date of incorporation | Jan. 25, 2005
Place of incorporation | Australia
Ownership | 100.00%
Principal activities | Dormant

X
- Definition Date when an entity was incorporated + References No definition available. + Details
Name: | dei_EntityIncorporationDateOfIncorporation
Namespace Prefix: | dei_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition The country in which a subsidiary of the entity is incorporated. [Refer: Total for all subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 16 -Subparagraph b -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_16_b_ii&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 17 -Subparagraph b -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_17_b_ii&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 12 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_12_b&doctype=Standard -URIDate 2024-03-27 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 19B -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_19B_b&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_CountryOfIncorporationOrResidenceOfSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The description of the nature of the entity's operations and principal activities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 138 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_138_b&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The name of a subsidiary. [Refer: Total for all subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 17 -Subparagraph b -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_17_b_i&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 12 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_12_a&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 16 -Subparagraph b -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_16_b_i&doctype=Standard -URIDate 2024-03-27 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 19B -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_19B_a&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_NameOfSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Total for all subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 19B -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_19B_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Organization and principal activities. + References No definition available. + Details
Name: | omse_OrganizationAndPrincipalActivitiesLineItems
Namespace Prefix: | omse_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=omse_OMSHoldingsPteLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=omse_OMSOilfieldServicesPteLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=omse_OMSOilfieldServicesArabiaLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=omse_OMSOilfieldHoldingsSdnBhdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=omse_OMSOilfieldServicesSdnBhdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=omse_PTOMSOilfieldServicesIndonesiaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=omse_OMSOilfieldServicesThailandLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=omse_PYOiltoolsSdnBhdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=omse_TopPentagonSdnBhdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=omse_OMSOilfieldServicesAustraliaPtyLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |