You are using an outdated browser and your browsing experience will not be optimal. Please update to the latest version of Microsoft Edge, Google Chrome or Mozilla Firefox. Install Microsoft Edge

June 30, 2017

Thailand: Amendments to the Petroleum Act and Petroleum Income Tax Act

On June 17, 2017, the Petroleum Act (No. 7) B.E. 2560 and the Petroleum Income Tax Act (No. 7) B.E. 2560 were both enacted, amending their predecessor laws. The amendments to both statutes entered into force on June 23, 2017. The amendments had been anticipated for some time, introducing production sharing agreements (PSAs) and service contracts as alternative host government instruments by which upstream oil and gas producers may invest in Thailand.

Traditionally, the concession has been the sole means by which oil and gas could be explored for or produced in Thailand. Acting similarly to a license, the Thai concession stipulates that petroleum is the property of the state, though ownership transfers to the concessionaire at the wellhead. The amendments to the Petroleum Act do not eliminate the potential use of concessions, but rather provide two new instruments for the Ministry of Energy (MOE) to utilize when contracting with petroleum producers.

Production Sharing Agreements

The MOE will now be permitted to define appropriate blocks to be explored and produced by way of a PSA. Sections 53/1 through 53/8 of the Petroleum Act now outline a number of basic principles relating to PSAs and clauses to be found in the PSA itself, including the following:

  • Minimum amounts of capital to be injected by the private oil and gas producer;
  • Allocation of ownership interests in produced petroleum between the private oil and gas producer and the Thai state, including provision for the private oil and gas producer to dispose of petroleum on behalf of the state;
  • Duty of the private oil and gas producer to submit a plan and budget for approval to the Petroleum Committee before starting the project; and
  • Clauses pertaining to management of operations, penalties in the event of noncompliance, and termination of the PSA.

Unlike concessions, under the PSA the Thai state will retain ownership over a portion of the petroleum after it has been produced.

Service Contracts

Similar to PSAs, the MOE will now be permitted to determine appropriate blocks to be exploited via a service contract. Unlike the PSA or the concession, where the private oil and gas producer obtains ownership in some or all of the produced petroleum, produced petroleum under the service contract belongs exclusively to the Thai state. Sections 53/9 through 53/18 of the Petroleum Act outline a number of key aspects of the service contracts to be used in Thailand, including:

  • Greater government control over exploration and production decision-making; and
  • A maximum duration of three years for any service contract.

Amendments to Petroleum Income Tax Act

The amended Petroleum Income Tax Act accommodates the addition of PSAs to the Petroleum Act and makes other revisions to the taxation regime for upstream producers. Production sharing producers will be taxed at the rate of 20 percent of net profits, subject to other provisions of the Petroleum Income Tax Act. Amendments to the general taxation regime for upstream producers include the ability to deduct certain parent company expenditures on the Thai subsidiary’s behalf, as to be prescribed in further detail in forthcoming Ministerial Regulations.

Conclusions and Looking Forward

The MOE has been granted the authority to prescribe detailed rules relating to PSAs and service contracts by adopting Ministerial Regulations pursuant to Sections 53/1 and 53/9 of the Petroleum Act. As the MOE and its Department of Mineral Fuels determine appropriate blocks where either arrangement would be suitable, we can anticipate form agreements to be prescribed and utilized in practice.

RELATED INSIGHTS​ 

May 25, 2026
After several years of policy discussion and continued efforts led by the Ministry of Commerce (MOC) to relax the list of reserved businesses under the Foreign Business Act B.E. 2542 (1999) (FBA), the reform process has now reached a significant milestone. On May 12, 2026, the Thai cabinet approved in principle two draft subordinate legislative instruments aimed at delisting certain reserved business activities under the FBA and reducing licensing requirements for foreign business operators. These developments signal a renewed and concrete effort by the government to modernize Thailand’s business regulatory framework in order to attract foreign investment and boost Thailand’s competitiveness in the global market. Nine Businesses Set for FBA Delisting Below is a list of the nine businesses that are being targeted for delisting from the FBA’s restrictions. A draft ministerial regulation would delist the first eight reserved businesses, while a royal decree has been drafted to delist the ninth business: Telecommunications services (Type 1 license only, covering operators without their own telecommunications infrastructure), under the supervision of the Office of the National Broadcasting and Telecommunications Commission. Treasury center services subject to the Foreign Exchange Control Act B.E. 2485 and under the supervision of the Bank of Thailand. Securities-collateralized lending, pursuant to the laws governing securities and exchange and derivatives regulated by the Securities and Exchange Commission. Agency, dealer, advisory, or fund management services relating to derivatives where the underlying assets fall outside the scope of the Derivatives Act B.E. 2546 (2003) Intra-group shared services, including administrative, human resources, and IT functions Intra-group domestic debt guarantee services Leasing of partial space for installation of financial service machines and automatic vending machines for employee use Petroleum drilling services Trading of agricultural product derivatives through a futures exchange, with physical delivery or receipt of agricultural products at a futures exchange–designated
February 10, 2026
Data center and cloud investments are forming a major focus of private-sector investment in Thailand, with tech giants like Amazon, Google, Microsoft, and TikTok, as well as numerous telecom and data center companies, committing significant outlays to data center and cloud development. The country’s Board of Investment (BOI) approved projects worth THB 1.87 trillion in 2025, and THB 746 billion of this was from planned data center investments—by far the largest amount from any single industry. Thailand’s swift rise as a regional data center hub is fueled by surging demand for cloud, AI, and digital services, as well as large-scale investments from global tech firms. The country’s strategic location, competitive power costs, robust fiber infrastructure, expanding IT talent, and supportive government policies—including BOI incentives and streamlined approvals—have made it an attractive destination for scalable and sustainable digital infrastructure investments. The BOI’s proactive approach in updating promoted categories and providing both tax and non-tax incentives further ensures Thailand’s continued growth in this sector. 2025 BOI Changes for Data Centers In the middle of 2025, the BOI responded to the remarkable trend by updating investment‑promotion categories across various sectors (e.g., machinery and electrical equipment, public utilities, digital and innovative industries) to accommodate growing investment in data‑center projects. Before the change, which was detailed in a notification that has applied to investment promotion applications submitted from July 1, 2025, onward, data‑center projects under BOI promotion were granted a single A1 incentive (an eight‑year corporate income‑tax exemption) and subject to one uniform set of conditions. The July 2025 notification restructured promotion for data centers into two categories based on power‑usage efficiency: high‑efficiency data centers and other data centers. Under these rules, qualified high‑efficiency data centers are eligible for an eight‑year corporate income tax (CIT) exemption, while for other data centers this exemption is
November 21, 2025
On November 17, 2025, Thailand’s Ministry of Interior introduced significant regulatory changes to make rooftop solar adoption easier and more cost-effective for property owners. Ministerial Regulation No. 72 B.E. 2568 (2025), issued under the Building Control Act B.E. 2522 (1979), was published in the Government Gazette on November 19, 2025, with immediate effect. Background Under the Building Control Act (BCA), any alteration made to a building requires either notification of the relevant authority or application for a building alteration permit—unless the alteration falls under a separate list of exceptions specified in the ministerial regulations issued under the BCA. In 2015, installation of solar rooftops on any residential building under 160 square meters was added to this list of exceptions, subject to inspection and notification requirements. The newly enacted regulation now eliminates many of these requirements and introduces a broader and more permissive framework to promote solar adoption nationwide. Key Changes Specifically, the regulation introduces three major changes: Expanded exemption from the definition of “building alteration”: The installation of solar panels on any building roof—regardless of the type of building or the total area of the installation—is no longer considered a building alteration under the BCA, provided that the total weight of the installation does not exceed 20 kg/m2. Removal of structural integrity certification requirement: The new regulation eliminates the obligation to obtain a structural stability certificate from a licensed civil engineer. Removal of notification requirement: Property owners or possessors are no longer required to notify the local authority before installation of a solar rooftop. Impact This significant streamlining of requirements for solar rooftop installation is expected to accelerate the adoption of renewable energy in the country, particularly for residential and commercial properties—similar to the way Thailand’s December 2024 removal of licensing requirements for factory solar rooftop installations encouraged such
September 25, 2025
Tilleke & Gibbins’ labor and employment team in Hanoi and Ho Chi Minh City has contributed the Vietnam chapter to Labor and Employment Disputes 2026. Drawing on the expertise of three of the firm’s employment specialists, the chapter provides practical guidance for navigating employment disputes in Vietnam and covers: Pre-action considerations: key requirements, third-party funding, contingency fee arrangements Issuing a claim: forum, territorial jurisdiction, standing, commencing claims, fees, service, defendants and legal personality, types of claims, time limits, counterclaims Case management: procedure, rules, amendments to claims, adding parties, consolidating proceedings, class and collective actions, evidence, witnesses, tactical considerations Interim relief: availability, requirements Trial: hearings conduct and time frames, confidentiality and public access, media reporting, elements of successful claims and burden of proof Alternative dispute resolution: available types, requirements and expectations, enforcement Collective employment and labor rights: enforcement and standing Remedies and enforcement: available remedies, assessing compensation, enforcement mechanisms Appeals: procedure, time frames, other means of challenge Updates and trends: recent cases and developments, technology developments, other issues The Vietnam chapter is available for download below. Tilleke & Gibbins also contributed the Cambodia and Thailand chapters to Labor and Employment Disputes 2026. Readers can also gain 30 days of complementary access to the full Labor and Employment Disputes 2026 guide and the rest of Lexology Panoramic’s varied offerings through this link.