Saudi Arabia’s record non-oil GDP share in the first half of 2026: diversification signal or arithmetic
ABSTRACT
Saudi Arabia’s Ministry of Finance announced in its 30 September 2026 pre-budget statement that non-oil activities reached a record 57.3% of GDP in the first half of 2026. This analysis asks whether the record reflects progress in diversification or a denominator effect produced by contracting oil activity, and argues that it is mostly the latter. GASTAT’s second-quarter growth rates and the Ministry’s 2026 forecasts are applied to a two-component share decomposition, and the result is compared with fiscal and employment indicators. With oil activities down 24.8% and non-oil and government activities up 0.9% in the second quarter, about 7 points of share gain come from the oil contraction and 0.2 points from non-oil growth. Oil still provided about 55% of government revenue in the same quarter.
1. A record set by the smaller sector
The 30 September 2026 pre-budget statement reports that non-oil activities reached a record 57.3% of GDP in the first half of 2026 (Arab News, 2026b; Asharq Al-Awsat, 2026a). The same statement projects a 3.6% real GDP contraction for 2026, with oil activities falling 21.8% and non-oil activities growing 3.2%. GASTAT’s revised figures of 8 September show what drove the first half: in the second quarter real GDP contracted 4.7% year on year, oil activities fell 24.8%, and non-oil and government activities grew 0.9% (Arab News, 2026c).
The research question is how much of the share record comes from growth in the non-oil economy and how much from the shrinking of the oil economy. The claim is that the record is largely a denominator effect and does not signal a jump in diversification. The scope is the first three quarters of 2026 and the 2027 projection. The price–volume split of oil revenue and debt financing are outside it.
2. Two ways to measure diversification
Economic diversification is defined here as a reduction in the dependence of output, government revenue and employment on the oil sector. Two measures follow from that definition. The ratio measure is the non-oil share of GDP. The absolute measure is the real growth rate of non-oil activity together with the degree to which that activity can be financed independently of oil revenue.
The two measures diverge because of the denominator. A share is a numerator over a denominator: when oil output contracts, the non-oil share rises even if non-oil output does not grow at all. The ratio measure therefore overstates diversification in a year of oil contraction and understates it in a year of oil recovery.
The literature supports judging diversification by absolute measures. Sachs and Warner (2001) discuss the growth record of resource-rich economies through the development of non-resource sectors; contraction of the resource sector does not by itself expand those sectors. Hertog (2010) argues that Gulf rentier systems produce intermediary layers that distribute rent between state and market, leaving much of the private economy dependent on that distribution chain. Yamada (2018) maintains that Saudi production retains rentier characteristics and that transformation should be assessed through human capital and citizen employment. The criterion these three studies yield is whether non-oil activity grows independently of oil revenue.
3. Decomposing the share gain
The gap in magnitude between −24.8% and +0.9% already indicates what moves the share. A simple decomposition measures it. GDP is reduced to two components, oil and non-oil, and other items are left out. GASTAT’s starting share is not used; hypothetical starting shares s of 45%, 50% and 55% are tested instead, so the results measure the mechanism, not the level. All calculations are the author’s.
With non-oil growth alone, the new share is 1.009s / (1.009s + (1 − s)). For every tested starting value the share rises by about 0.2 points. With the oil contraction alone, the new share is s / (s + 0.752(1 − s)). At s = 50% this gives 0.5 / 0.876 = 57.1%, a rise of 7.1 points; across the three starting values the rise is 6.9 to 7.1 points.
The Ministry’s annual forecasts give the same result. Non-oil growth of 3.2% raises the share by about 0.8 points; an oil contraction of 21.8% raises it by 6.0 to 6.1 points, from s / (s + 0.782(1 − s)). Even under the Ministry’s non-oil growth assumption, which is more optimistic than the second-quarter outturn, roughly seven-eighths of the share gain comes from the denominator.
The decomposition has explicit limits. The 57.3% refers to the first half, the growth rates to the second quarter, and the sources do not say whether the share is computed at current or constant prices. These differences can change the size of the result but not its direction: when non-oil growth is below 1 point and oil contraction above 20 points, the oil contraction determines the change in share.
4. Where diversification actually sits
The second component of the absolute measure is fiscal. According to the Ministry’s second-quarter report, total revenue was SAR 338.8bn, oil revenue SAR 185.1bn (up 22% year on year) and non-oil revenue SAR 153.7bn (up 3%); expenditure rose 11% to SAR 373.1bn (Asharq Al-Awsat, 2026b; Arab News, 2026a). Oil therefore supplied about 55% of quarterly government revenue (185.1 / 338.8). The non-oil share of GDP set a record while the budget’s dependence on oil persisted.
Hertog’s (2010) distribution chain connects the two indicators. A large part of non-oil activity is fed by public spending, and public spending is financed mainly from oil revenue. Spending rising 11% while non-oil activity grew 0.9% suggests weak transmission through this channel in 2026. Spending growth is nominal and the activity rate is real, so the comparison is a signal, not proof.
Employment data are thinner. The pre-budget statement gives Saudi-national unemployment of 6.5% for the second quarter of 2026 (Arab News, 2026b). This is a relevant data point for Yamada’s (2018) criterion, but without a comparable series in the sources it cannot be linked to the 2026 share gain.
5. Alternative explanations considered
The strongest alternative is that diversification is real and the share record reflects it. The long-run fiscal series supports part of this: non-oil revenue rose from SAR 166bn in 2015 to SAR 505bn in 2025 (Arab News, 2026b; Asharq Al-Awsat, 2026a), a decade of genuine revenue diversification. The alternative fails for 2026 specifically. Non-oil revenue grew only 3% in the second quarter, and non-oil activity grew 0.9%. The diversification trend predates the record, and the record did not accelerate it.
A second alternative is that the Ministry’s 3.2% annual non-oil forecast, and not the 0.9% quarterly outturn, is the right benchmark. Using it narrows the denominator’s portion of the gain from roughly 97% (about 7.0 against 0.2 points) to roughly 88% (about 6.05 against 0.8 points), which leaves the conclusion intact. The non-oil growth rate would have to approach the scale of the oil contraction before the ratio measure and the absolute measure told the same story.
6. Outlook: Türkiye, Saudi Arabia and the World
For Saudi Arabia the denominator effect can be expected to persist into the third quarter. The IEA reports Saudi output falling from 8.24 mb/d in July to 5.97 mb/d in August (International Energy Agency, 2026b). If oil activity keeps contracting, the non-oil share rises without any acceleration in non-oil growth. The reverse should follow in 2027. The Ministry’s 12.8% real growth projection for 2027 (Arab News, 2026b) is not justified in the sources reporting the statement; a jump of that size can only come from a recovery in oil output, which would lower the non-oil share without any regression in diversification. The first October data point is the meeting of the seven OPEC+ producers on 4 October. Saudi Arabia’s required production level for October is 10.478 mb/d (ANI, 2026; Azubuike, 2026), about 4.5 mb/d above August’s actual output by the author’s calculation, which indicates that oil activity is constrained by export capacity, not by quota. The IEA report of 14 October is expected to give the first estimate of September production (International Energy Agency, 2026a).
Türkiye faces the same measurement problem in its own indicators. In August 2026 the export-to-import coverage ratio was 81.8%, and 98.8% excluding energy (CNBC-e, 2026). When energy prices are elevated, “excluding energy” ratios are affected by composition shifts in the same way as the Saudi non-oil share. For Turkish exporters to the Saudi market, the relevant indicator is the absolute growth of non-oil activity and the path of public spending, not the share record.
Globally, institutions and investors tracking Gulf diversification through share indicators would receive two misleading signals in opposite directions if oil output recovers in 2027: overstated progress in 2026 and overstated regression in 2027.
7. Conclusion
The record 57.3% non-oil share of Saudi GDP in the first half of 2026 is mostly a denominator effect. Using hypothetical starting shares, the decomposition attributes about 7 points of share gain to the 24.8% contraction in oil activities and about 0.2 points to the 0.9% growth in non-oil activities. Absolute measures do not support the record either: about 55% of government revenue still came from oil in the same quarter, and non-oil revenue grew just 3%. Saudi Arabia’s decade of revenue diversification is real, but the 2026 record does not measure it. Diversification is better tracked through the real growth of non-oil activity, the non-oil component of government revenue and citizen employment. The main limitation is that GASTAT’s series for the starting share and price basis are absent from the sources, so the decomposition measures the mechanism, not the level.
SOURCES
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Furkan Mahmut Tameroglu