When the Dangote Petroleum Refinery IPO opens, you will fund your brokerage account, link your CSCS number, and apply through the offer window. The question that follows the subscription close is the one that matters most: did you get shares?
The planned listing of the 650,000-barrel-per-day refinery could raise up to $5 billion at a valuation between $40 billion and $50 billion, Semafor reported. Private placement interest alone has surpassed $2 billion before the public offer window has opened, Dangote told reporters during a facility tour in Lagos, Channels Television reported.
That demand virtually guarantees oversubscription, making the allocation process the most critical stage for retail investors. This guide breaks down how Nigerian IPO allocation works, what oversubscription means for your application, and when your shares will appear in your portfolio.
How the Dangote Refinery IPO allocation mechanism works
Nigerian IPO allocations follow one of two primary methods when demand exceeds supply, Bamboo explained in a detailed investor guide. The first is pro-rata allotment, where every applicant receives a proportional reduction based on the ratio of available shares to total demand.
More on Nigerian capital markets:
- PZ Cussons Nigeria profit surges 388% in FY2026
- Dangote Cement wins nod for London listing at 17th AGM
- United Capital insider snaps up 17,000 shares
The second method is a ballot or lottery system, deployed when pro-rata distribution would produce impractically small fractions of the minimum lot size. Under balloting, a computerized random selection determines which applicants receive the minimum lot and which receive nothing.
The allocation method for the retail tranche will be disclosed in the prospectus, and the basis of allotment will be published after the offer closes, Bamboo noted. Retail investors, institutional investors, and pension funds receive separate tranches, and oversubscription is assessed within each category independently.
Oversubscription is almost certain based on pre-IPO demand signals
Dangote disclosed that private placement requests had already crossed $2 billion before the public offer window opened, Channels Television reported. Richmond Bassey, CEO of Bamboo, a Nigerian broker with 1.7 million users, provided context on the demand environment.
“We held an investor meet and greet in Ghana and everyone’s interest was finding out how to participate in the Dangote IPO,” Bassey told Semafor.
The Independent Shareholders Association of Nigeria (ISAN) has urged the SEC and Nigerian Exchange to reserve a defined portion for retail and minority investors, The Guardian Nigeria reported. Moses Igbrude, ISAN’s National Coordinator, warned that failure to create such a reserve could let institutional investors dominate the allocation.
Investors should note that Nigeria’s Securities and Exchange Commission ordered an immediate halt to all unauthorized IPO marketing on June 23, 2026, stating that no application for the registration of an IPO or public offer has been filed with or approved by the Commission, CNBC Africa reported via Reuters. The SEC directed capital market operators to remove all promotional materials and refund collected deposits within 24 hours of the notice.
How MTN Nigeria’s oversubscribed offer handled allocation in 2021
The most relevant precedent is the 2021 MTN Nigeria public offer, which was oversubscribed by 139.47%, BrandCrunch reported. That oversubscription triggered a 15% over-subscription clause, adding 86.25 million shares to the 575 million originally offered by the MTN Group.
Retail shareholders in the MTN offer received their full allotment despite the oversubscription, while institutional investors who participated through the bookbuild were allotted on a pro-rata basis. A total of 114,938 new CSCS accounts were opened by first-time investors during that offer period, MTN Group confirmed in its allocation results disclosure.
When allocation results are announced and shares reach your CSCS account
After the subscription window closes, the registrar collates all applications and publishes the official basis of allotment. Shares are credited to successful applicants’ CSCS accounts within five to ten business days from the allotment date, Bamboo confirmed in its CSCS investor guide.
You can verify your allotment status through your brokerage platform, email or SMS notification, or by contacting the offer registrar directly through the Nigerian Exchange website.
Key Dangote Refinery IPO allocation timelines to watch
- Subscription window: Expected to open around September 2026, pending SEC Nigeria prospectus approval, CNBC Africa reported. No formal IPO application has been filed with the SEC as of June 2026.
- Basis of allotment: Published by the registrar after the offer closes, typically within a few weeks of the subscription deadline, depending on the registrar’s processing timeline.
- CSCS crediting: Five to ten business days after the allotment date, as confirmed by CSCS standard settlement practice.
- Refunds: Processed and returned to the bank account linked to the investor’s application within the same settlement window.
- Secondary market trading: Begins on the NGX main board under the current T+1 settlement cycle implemented by CSCS effective June 1, 2026.
What to do if you receive a partial allocation or full refund
A partial allocation means the registrar approved your application but reduced the number of shares you received because demand exceeded the available supply in your investor category. Funds for the unallotted portion are returned to your designated bank account or brokerage wallet.
Nigerian pension funds holding nearly $20 billion in assets will participate in the offering after regulators waived the three-year profitability requirement, Semafor reported. That regulatory waiver broadens the institutional pool and could intensify competition for shares across all tranches of the Dangote Refinery IPO.
