ABSTRACT
Escalating aridity, population growth, and impaired aquifers are intensifying structural water deficits across Jordan, Yemen, and Oman in 2025, accelerating the turn to privately financed desalination and expanding informal tanker markets that function as de facto subscription services. A recent open-access article in Nature Sustainability finds that tanker markets in Jordan supply 15% of drinking water and capture 52% of urban water revenue, with unregulated sales exceeding government licenses by a factor of 10.7, and projects a 2.6-fold rise in household tanker reliance by 2050; these dynamics emerge as governments consider large desalination additions with long-term capacity payments to private consortia, raising affordability and equity concerns for low-income users in intermittent supply zones.
Evidence from the World Bank’s 2020 Yemen Dynamic Needs Assessment shows 52% of Yemenis relying on private vendors, including trucked water priced between $1.64/m³ and $16.43/m³, while a privately owned desalination plant near Mocha was destroyed during conflict, underscoring fragility in privatized supply. In Oman, the state buyer model administered by the Oman Power and Water Procurement Company procures desalinated water exclusively from private Independent Water Projects under long-term Water Purchase Agreements, with contracted capacities such as 281,000 m³/day at Barka IV and 250,000 m³/day at Sohar IV, and with tariff reforms published by the Authority for Public Services Regulation setting residential water charges at OMR 0.660/m³ and non-residential at OMR 1.320/m³, moving toward cost reflectivity.
Regional syntheses by ESCWA in 2024 and 2025 emphasize persistent shortfalls on SDG 6 and heavy groundwater dependence amid declining storage, reinforcing the risk that desalination outsourcing—if paired with rapid tariff restructuring—morphs essential access into tiered, pay-as-you-go services. This article integrates institutional evidence to evaluate how privatized desalination, bulk purchase obligations, and intermittent network service interact to create subscription-like water access patterns, the distributional consequences across income deciles, and policy options to align private finance with universal service obligations.
CHAPTER INDEX
Hydroclimate, Demography, and the Aquifer Crisis in Jordan, Yemen, and Oman
Jordan: Intermittent Networks, Tanker Markets, and PPP Desalination
Yemen: Conflict-Damaged Systems, Private Vendors, and Marginal Desalination
Oman: The IWP Model, Bulk Purchase Agreements, and Tariff Reform
Cost Formation: Capital Recovery, Energy Inputs, and Retail Tariffs in a Desalination Era
From Utility to Subscription: Contract Structures, Payment Frictions, and Inequality
Environmental Externalities: Energy, Brine, and Groundwater Feedbacks
Governance Pathways: Universal Service, Targeted Subsidies, and Regional Cooperation
Hydroclimate, Demography, and the Aquifer Crisis in Jordan, Yemen, and Oman
Rising temperatures and prolonged precipitation volatility have tightened hydrological constraints across Jordan, Yemen, and Oman by 2025, with regional diagnostics from ESCWA documenting widespread non-attainment of SDG 6 targets, persistent over-abstraction of groundwater, and rising urban exposure to intermittent supply. The ESCWA Arab Sustainable Development Report 2024 describes the Arab region’s lagging progress on water-related targets and emphasizes linkages between water scarcity, food and energy security, and health outcomes, while the ESCWA Water Development Report 10 released in 2025 provides a midterm review that identifies the predominance of water stress across 19 of 22 Arab economies below the scarcity threshold, the heavy structural reliance on non-renewable groundwater, and investment gaps in integrated water resources management. See ESCWA Arab Sustainable Development Report 2024 and ESCWA Water Development Report 10 (2025).
Rapid urbanization intensifies demand in already water-constrained basins, with World Bank project documents for Jordan reporting urbanization near 92% in 2021 and projecting a demand-supply gap exceeding 20% by 2025 without interventions, alongside rationed deliveries that can fall to 70 liters per person per day in stress periods. These pressures compound long-standing deficits in infrastructure renewal, energy-intensive pumping, and network losses. See the World Bank’s Jordan Water Sector Efficiency Project appraisal June 15, 2023 and subsequent implementation reporting September 6, 2024 for quantified baselines on intermittent supply, non-revenue water, and demand trajectories. World Bank Jordan Water Sector Efficiency Project (June 15, 2023), Implementation Status & Results (September 6, 2024).
The strategic response increasingly centers on desalination capacity to offset aquifer depletion, but capital cost, energy intensity, and contractual design determine distributional outcomes. The Nature Sustainability open-access study on Jordan’s tanker markets concludes that even an addition of 300 million m³/year of desalinated water would reduce tanker-market abstractions in 2050 by only 19 million m³/year, implying that supply augmentation alone cannot eliminate reliance on higher-priced private delivery under conditions of intermittency and population growth. In the modeled baseline, tanker markets transport 95 million m³/year by 2050, while the population receiving less than 40 liters per person per day of public supply increases fivefold, revealing the structural nature of subscription-like procurement in deficit zones. Nature Sustainability article, 2023.
Regional pricing and access disparities widen as tariff reforms pursue cost recovery in parallel with private desalination procurement. In Oman, the Authority for Public Services Regulation publishes permitted water tariffs that for residential users set OMR 0.660/m³, with non-residential tariffs at OMR 1.320/m³, and communicates a subsidy phase-out path launched in January 2021; the International Energy Agency also records the multi-year reform of electricity and water subsidies beginning 2021. The orientation toward cost reflectivity strengthens balance sheets but can intensify household payment burdens where intermittent delivery requires supplemental tanker purchases. See APSR Permitted Tariffs and IEA policy note on Oman subsidy reforms (August 2, 2023).
Jordan: Intermittent Networks, Tanker Markets, and PPP Desalination
The capital’s intermittent network and constrained reservoir storage create predictable seasonal deficits that fuel tanker-market dependence and willingness to pay above utility tariffs. The International Finance Corporation describes limited deliveries in some cities driving residents toward costly tankers, with high non-revenue water undermining utility finances; its June 6, 2024 announcement details a program with Miyahuna to reduce network losses and improve resilience for 1.6 million beneficiaries. The same institutional record notes that intermittent delivery raises consumption volatility and forces households into market transactions that mirror subscription behavior, where volume and frequency are flexibly purchased at elevated marginal prices. IFC press release (June 6, 2024).
Empirical estimates of private tanker markets in Jordan provide quantitative anchors for affordability analysis. The Nature Sustainability study estimates that tanker markets supply 15% of drinking water and account for 52% of urban water revenue, with unregulated sales exceeding government licenses by 10.7 times and average prices rising toward $4.0/m³ nationally by 2050, reaching $5.2/m³ in Amman due to aquifer drawdown and extended transport distances. These price levels substantially exceed typical municipal volumetric charges, which remain constrained by social and political considerations, and they introduce a dual-track system where utility service assures baseline volumes while private deliveries top up consumption at subscription-like marginal rates. Nature Sustainability article, 2023.
Household vulnerability data reveal how intermittent access translates into differentiated market exposure. World Bank documentation for 2023–2024 records rationed service that can fall to 70 liters per person per day, with modeled projections showing that the share of tanker water in household consumption grows 2.6-fold by 2050. The demand-side implication is that constrained public supply elevates the shadow price of reliability, and households internalize that scarcity through repeated private purchases rather than through a single uniform tariff, a defining feature of subscription economics. World Bank Jordan Water Sector Efficiency Project (June 15, 2023), Nature Sustainability article, 2023.
Capital planning for desalination in Jordan has concentrated on the Aqaba–Amman Water Desalination and Conveyance Project, framed domestically as the National Water Carrier, to be procured under a design-build-operate concession with private consortium participation. Ministry of Water and Irrigation procurement materials set out the PPP structure and prequalification phases, indicating long-term Water Purchase commitments to secure volumes transported from Aqaba to Amman. Under a bulk-purchase model, fixed capacity payments combined with energy pass-throughs can reconfigure the utility’s cost base and, absent compensatory cross-subsidies, raise volumetric charges. MWI National Water Carrier
Financial sustainability road-mapping within the World Bank program clarifies the policy trade-space. The Water Sector Financial Sustainability Roadmap, adopted by the Council of Ministers in 2023, identifies measures including tariff reform, non-revenue water reduction from 53% to 25% by 2040, and energy efficiency to close the operational deficit by 2029 and restore cost recovery before the national carrier’s commissioning. Scenario tables in 2024 World Bank documents show how efficiency gains compress debt and deficit trajectories relative to baseline, mitigating the need for steep tariff adjustments that would exacerbate household expenditure burdens in tanker-dependent districts. World Bank document with FSR excerpts (February 28, 2024), Scaling Up Finance for Water technical annex with Jordan financial trajectories, 2023–2024.
Within the urban fabric, household-level heterogeneity in reliance on non-network sources is visible in UN-Habitat spatial profiles. The Irbid Spatial Profile 2022 reports 2% of surveyed households relying on tanker trucks as a primary water source, 4% on bottled water, and 3% on wells, a mix that illustrates how local network performance and income interact to shape private purchases, with much higher tanker dependence documented elsewhere in Jordan by hydrosocial analyses and the World Bank/IFC narrative for Amman. UN-Habitat Irbid Spatial Profile (March 31, 2022), IFC press release (June 6, 2024).
Social cost and equity considerations arise where tanker prices approach or exceed unsubsidized municipal volumetric charges by multiples. The Nature Sustainability modeling attributes significant components of tanker price escalation to energy costs and increased haulage distances as local groundwater declines, adding about 17.6 kWh/m³ in transportation energy relative to reverse osmosis generation and raising Amman prices toward $5.2/m³ by 2050. These margins imply that income-constrained households face liquidity frictions and payment timing shocks, reproducing subscription-service mechanics where monthly or weekly payments for small volumes are required to smooth consumption between intermittent network deliveries. Nature Sustainability article, 2023.
Yemen: Conflict-Damaged Systems, Private Vendors and Marginal Desalination
The conflict-era collapse of networked services in Yemen entrenched a vendor-dominated water economy, with the World Bank’s Yemen Dynamic Needs Assessment Phase 3 (2020 update) estimating that 52% of the population relies on private vendors, including trucked water, and recording price ranges between $1.64/m³ and $16.43/m³ across cities such as Aden and Taiz; by 2020, about 38% of water and sanitation assets were damaged or destroyed, eroding utility-based access. The same report documents the destruction of a privately owned desalination plant near Mocha, a salient example of how privatized supply can be abruptly impaired under conflict, thereby amplifying price spikes and rationing. World Bank Yemen DNA Phase 3, 2020 Update, World Bank Water Security Diagnostic for Yemen (November 9, 2024).
Urban profiling by UN-Habitat corroborates the dislocation of municipal service and the substitution of private trucking in major cities. City profiling documents for Taiz and broader urban diagnostics identify fragmented utilities, damaged intakes, and widespread resort to non-network sources, with implications for affordability where daily purchase flows from vendors become necessary to maintain minimum consumption. The emergence of small-scale, often diesel-powered desalination and point-of-use purification in coastal governorates remains marginal relative to total urban demand yet exemplifies the subscription model under scarcity: households pay per jerrycan or per cubic meter at prices that absorb energy and capital replacement costs in real time. UN-Habitat Taiz City Profile (January 24, 2019).
Conflict-era energy volatility elevates desalination costs and disrupts vendor supply chains, reinforcing price dispersion and inequality. The World Bank diagnostic observes that asset destruction and fuel supply constraints translate into irregular vendor deliveries and sharp local price gradients, while the small base of coastal desalination is exposed to outages, brine disposal challenges, and security risks. A UNDP program note from March 23, 2025 highlights attempts to catalyze private desalination investment in Aden through workshops with local stakeholders, exploring models for selling water to industry and recycling brine to broaden the investment base; in a conflict setting, such efforts face elevated risk premiums that typically pass through into end-user pricing. UNDP Arab States story on desalination efforts in Aden (March 23, 2025).
Price levels reported in the World Bank needs assessment translate into extreme monthly burdens for low-income households when converted to per-capita minimum consumption standards. At $3–$10/m³, a four-person household purchasing 6–8 m³ monthly would face bills of $18–$80, excluding transport premiums during shortages; these charges arrive outside consolidated utility billing cycles, often weekly or even daily, replicating subscription economics with high marginal rates and limited deferral options. In such contexts, humanitarian transfers may effectively subsidize private vendors rather than restore networked service, a dynamic noted across water-scarce, conflict-affected settings and highlighted in ESCWA’s regional monitoring as a persistent barrier to equitable SDG 6 progress. ESCWA SDG 6 Thematic Chapter, 2024, World Bank Yemen DNA Phase 3, 2020 Update.
Oman: The IWP Model, Bulk Purchase Agreements, and Tariff Reform
A centralized single-buyer architecture in Oman has institutionalized private desalination through Independent Water Projects, whereby the Oman Power and Water Procurement Company contracts capacity from privately owned plants under long-term Water Purchase Agreements and sells bulk water to Nama Water Services distribution systems. The OPWP Seven-Year Statement 2022–2028 enumerates contracted capacities including Barka IV IWP at 281,000 m³/day, Sohar IV IWP at 250,000 m³/day, Ghubrah II at 191,000 m³/day, and Qurayyat IWP at 200,000 m³/day, with new additions such as Barka V IWP at 100,000 m³/day reaching scheduled commercial operation in July 2024. This inventory confirms that all large-scale desalination in the interconnected system is privately owned and operated, with fixed and variable charges embedded in the bulk supply tariff and ultimately carried to end users through regulated retail tariffs. OPWP Seven-Year Statement, Issue 16 (2022–2028).
Regulatory instruments make the private orientation explicit. The Authority for Public Services Regulation issues plant-specific production licenses tying the license term to the underlying Water Purchase Agreement, as in the January 25, 2024 license for GS Inima Barka 5 Desalination Company authorizing production up to 100,000 m³/day, and it publishes permitted retail water tariffs. The long-term capacity payment mechanics of such agreements create an annuity-like cash flow for private sponsors and define the cost base for the bulk buyer, with implications for retail tariff trajectories under subsidy reform. APSR production license for Barka 5 (January 25, 2024), APSR Permitted Tariffs.
Tariff rebalancing in Oman interacts with the private desalination portfolio. The International Energy Agency tracks the multi-year phase-out of generalized electricity and water subsidies starting January 2021, while OPWP’s statements note the introduction of cost-reflective tariff options and shifts in demand profiles. Official tariff pages show residential rates of OMR 0.660/m³, with higher non-residential charges of OMR 1.320/m³; as subsidy cushions are withdrawn, cost pass-throughs from Water Purchase Agreements become more salient to household budgets, especially in summer peak months when demand is highest. IEA policy note (August 2, 2023), APSR Permitted Tariffs, OPWP Seven-Year Statements.
The private desalination estate has been expanded and refinanced by international sponsors under build-own-operate frameworks with 20-year horizons and contracted offtake, shifting sovereign exposure from construction risk to annuity-type payment obligations. Documentation for Barka IV emphasizes $314 million of private financing for 281,000 m³/day of seawater reverse osmosis capacity, while Sohar IV reflects a 250,000 m³/day unit commissioned with private capital to supply the Batinah region. These assets anchor the subscription-like character of water access in the sense that systemwide fixed payments must be recovered from users, directly or via the budget, and that any volumetric under-recovery amplifies fiscal pressures, heightening the salience of retail tariff settings for equity. ENGIE Barka IV IWP summary, Oman Observer on Sohar-4 operation (October 11, 2019).
Cost Formation: Capital Recovery, Energy Inputs, and Retail Tariffs in a Desalination Era
Desalination cost trajectories in Jordan, Yemen, and Oman are shaped by capital recovery structures, energy inputs, and retail tariff adjustments that interact with fiscal consolidation targets. Benchmark analysis by the International Renewable Energy Agency in 2022 places seawater reverse osmosis levelized costs at $0.50–$1.20/m³, with capital expenditure contributing 40–50% of lifecycle costs and energy inputs 30–40%, depending on fuel mix. For Oman, the OPWP Seven-Year Statement 2022–2028 specifies contracted prices for new desalination capacity between 115–180 baisa/m³, equating to $0.30–$0.47/m³, with escalation clauses linked to power tariffs, while the APSR publishes retail charges more than an order of magnitude higher, reflecting not only desalination but also transmission, distribution, and subsidy withdrawal. IRENA Renewable Energy Desalination Costs Report (2022), OPWP Seven-Year Statement (2022–2028), APSR Tariffs.
In Jordan, cost recovery trajectories hinge on bulk purchase agreements under the National Water Carrier PPP, where fixed capacity payments and energy pass-throughs are expected to shape the utility’s long-term marginal cost of supply. The World Bank’s Scaling Up Finance for Water technical annex 2023 estimates that national carrier desalination volumes will cost between $1.0–$1.5/m³ before transmission, with transport over 325 km and elevation gain to Amman adding $0.70–$0.90/m³, bringing delivered costs near $2.2/m³. Such figures exceed current municipal tariff levels of $0.60–$0.70/m³, indicating a substantial financing gap unless covered by subsidies or tariff reform. World Bank Scaling Up Finance for Water Annex (2023).
In Yemen, cost formation reflects small-scale desalination powered by imported diesel, with World Bank documentation noting unit costs often above $10/m³ and transmission loss rates over 25% due to conflict damage. Reliance on trucked distribution adds markups ranging from 50–300% depending on security and distance, with empirical surveys in Aden recording median prices of $5.6/m³. This diverges sharply from bulk RO benchmarks and demonstrates how conflict-fragmented markets convert energy scarcity directly into household affordability stress. World Bank Yemen Water Security Diagnostic (November 9, 2024).
From Utility to Subscription: Contract Structures, Payment Frictions, and Inequality
The mechanics of subscription-like water access emerge where intermittent public delivery forces households into recurrent transactions with private providers. In Jordan, the Nature Sustainability projection indicates tanker markets handling 95 million m³/year by 2050, with households paying incrementally per delivery at average prices near $4.0/m³, structurally different from consolidated monthly utility bills. The subscription analogy is reinforced by evidence that low-income households purchase in smaller, higher-frequency increments, effectively paying higher per-unit prices, a liquidity friction similar to prepaid mobile telephony. Nature Sustainability article (2023).
Contract design also embeds subscription features at the sovereign level. In Oman, Water Purchase Agreements with IWPs require the state buyer to make fixed monthly payments covering capital and operating costs regardless of actual demand, analogous to a subscription fee for capacity. This obliges Nama Water Services and the state to recover costs via either tariff increases or fiscal transfers. Where subsidy reforms have reduced budgetary cushions, households face more direct exposure to pass-through costs, which then interact with intermittent service to create hybrid models of billing plus market-based supplements. OPWP Seven-Year Statement (2022–2028), APSR Tariffs.
In Yemen, subscription dynamics manifest in the extreme, as fragmented vendor markets oblige daily or weekly cash payments at volatile prices, with households unable to defer payments or average costs across months. The World Bank DNA Phase 3 report 2020 notes that over 50% of households buy water from vendors, many in volumes of 20–40 liters per purchase. Payment structures of this granularity replicate subscription-like microtransactions at punitive marginal rates, highlighting inequality where wealthier households can negotiate bulk purchases or secure direct well access at lower per-unit costs. World Bank Yemen DNA Phase 3, 2020 Update.
The intersection of tariff reforms, private desalination finance, and intermittent access reinforces disparities across income deciles. ESCWA’s Arab Sustainable Development Report 2024 warns that financing gaps may push governments toward tariff schemes that recover costs from consumers without parallel safety nets, exacerbating inequality. At the same time, utility-level subscription contracts with private desalination firms commit governments to multi-decade payments that transfer risk from private investors to public balance sheets, intensifying the policy challenge of reconciling fiscal sustainability with universal access. ESCWA Arab Sustainable Development Report 2024.
Environmental Externalities: Energy, Brine, and Groundwater Feedbacks
The externalities of privatized desalination extend beyond finance and equity to encompass emissions, brine discharge, and aquifer stress. IEA reports in 2023 record that desalination in the Middle East consumed over 50 TWh of electricity in 2022, predominantly from fossil sources, producing associated emissions of over 30 MtCO₂, equivalent to more than 6% of the region’s power-sector emissions. This locks in long-term carbon intensity unless coupled with renewables. IEA Global Energy Review 2023.
Brine management remains a parallel concern. The UNEP’s global brine assessment estimates that desalination plants generate 1.5 liters of brine for every liter of freshwater, with the Middle East and North Africa producing more than 50% of the world’s brine. Concentrated discharges in semi-enclosed seas such as the Arabian Gulf elevate salinity and temperature, impairing marine ecosystems and complicating co-location with fisheries. For Oman, OPWP documents confirm brine discharge pipelines at Sohar and Barka, requiring monitoring regimes that depend on private operator compliance. OPWP Seven-Year Statement (2022–2028).
Groundwater dynamics also interact with desalination outsourcing. In Jordan, tanker markets abstract heavily from private wells, with the Nature Sustainability study quantifying unauthorized abstractions 10.7 times licensed volumes. Without effective governance, aquifer depletion accelerates despite desalination expansion, as utility shortfalls preserve demand for tanker water. In Yemen, over-pumping for agriculture continues to drive aquifer collapse, undermining any stabilization effect from localized desalination. Nature Sustainability article (2023), World Bank Yemen Water Security Diagnostic (2024).
Governance Pathways: Universal Service, Targeted Subsidies, and Regional Cooperation
Policy frameworks across Jordan, Yemen, and Oman increasingly confront the dual challenge of mobilizing private capital for desalination while safeguarding affordability. The World Bank’s Scaling Up Finance for Water technical annex 2023 underscores that without explicit pro-poor mechanisms, cost-recovery strategies risk undermining equity. The report highlights instruments such as output-based aid, targeted lifeline tariffs, and donor-backed guarantees as pathways to reconcile financial sustainability with universal service. World Bank Scaling Up Finance for Water Annex (2023).
In Jordan, the Water Sector Financial Sustainability Roadmap 2023 explicitly integrates tariff reform with cross-subsidization, recommending retention of low-block tariffs for the first 30 m³/month to protect vulnerable households, while progressively aligning higher blocks with the cost of desalinated supply. Government communications and World Bank monitoring reports show a phased plan to eliminate operational deficits by 2029, suggesting fiscal space to sustain such subsidies during the commissioning of the National Water Carrier. World Bank document with FSR excerpts (2024).
In Yemen, governance pathways are constrained by conflict, yet donor-led interventions focus on scaling decentralized, community-owned desalination powered by renewables. The UNDP Arab States program note March 23, 2025 emphasizes pilot projects in Aden that combine private sector engagement with community oversight, seeking to stabilize prices through donor-supported capital investment and local operation. These approaches aim to reduce reliance on opportunistic vendors and to lower per-unit costs to under $5/m³ through renewable energy inputs and communal governance. UNDP Arab States desalination resilience story (2025).
In Oman, tariff reform and private desalination procurement are coordinated under a single-buyer framework, enabling centralized subsidy allocation. The APSR tariff schedules and OPWP Seven-Year Statement mechanisms allow for differentiated tariffs across user groups while maintaining fiscal transparency. However, absent direct cash transfers, lower-income households in intermittent zones may still face liquidity constraints. Policy recommendations from ESCWA’s Water Development Report 10 (2025) suggest coupling regional cost-recovery reforms with targeted subsidies and enhanced transboundary cooperation, particularly in sharing technology and regulatory expertise for desalination and groundwater management. ESCWA Water Development Report 10 (2025).
Regional cooperation also offers a governance pathway beyond unilateral privatization. ESCWA’s Arab Sustainable Development Report 2024 proposes expanding the Arab Ministerial Water Council’s coordination role to harmonize desalination standards, regulate tanker markets, and encourage renewable-powered desalination. Such frameworks could mitigate inequity by reducing energy costs and stabilizing vendor pricing across borders, while facilitating donor alignment. ESCWA Arab Sustainable Development Report 2024.
The emerging subscription character of water in the Arab world underscores the urgency of binding universal service obligations into private contracts. Without safeguards, multi-decade Water Purchase Agreements risk embedding inequality, as capacity payments assure private investors while households without liquidity pay disproportionately for reliability through tanker markets. Embedding requirements for lifeline block tariffs, targeted subsidies, and social equity metrics within procurement frameworks represents a governance solution that aligns private desalination with the public good.
