Venezuela Oil Sanctions Evasion: The Shadow Tanker Pipeline
How PDVSA crude still reaches Chinese refiners despite a six-year US blockade — and why the tankers carrying it are the same dark-fleet hulls that move Russian and Iranian oil.
Venezuela exports almost no oil on paper. In practice, tanker-tracking data shows the country shipping roughly 750,000 to 966,000 barrels per day through 2025, with the overwhelming majority absorbed by China after a laundering chain of ship-to-ship transfers, relabelling, and AIS manipulation. This brief reconstructs that pipeline: the legal architecture of US sanctions, the concealment tradecraft, the Iran–Venezuela vessel-sharing arrangement, and the late-2025 enforcement pivot from designations to physical interdiction. The single most important structural finding for analysts: the dark fleet is not a Venezuelan asset. It is a shared, fungible pool of hulls that rotates between Russian, Iranian, and Venezuelan cargoes.
The Sanctions Architecture
US pressure on Venezuela's oil sector is built on Executive Order 13850 (November 2018), which authorizes designations of persons operating in the Venezuelan oil sector. The decisive move came on 28 January 2019, when OFAC designated Petróleos de Venezuela, S.A. (PDVSA) — the state oil company that supplies the bulk of the regime's foreign currency. Reported All PDVSA property within US jurisdiction was blocked, and the 50%-rule extended the freeze to PDVSA's joint ventures and empresas mixtas.
A second order that day, Executive Order 13857, clarified that "Government of Venezuela" includes the Maduro regime. The framework was then layered with secondary-sanctions exposure for non-US parties, periodic comfort licenses, and — under the second Trump administration — an aggressive 2025 reversal of those carve-outs.
| Date | Action | Authority / Instrument |
|---|---|---|
| 2018-11-01 | Oil-sector designation authority established | Executive Order 13850 |
| 2019-01-28 | PDVSA designated as blocked person | EO 13850 (OFAC) |
| 2019-01-28 | Maduro regime defined as "Government of Venezuela" | Executive Order 13857 |
| 2022-11 | Chevron limited-operations license issued | General License 41 |
| 2025-02-26 | Trump announces reversal of Chevron authorization | Policy announcement |
| 2025-03-04 | Chevron wind-down license replaces GL 41 | General License 41A |
| 2025-07-23 | Revised general licenses published (41A, 5R, 41B) | Federal Register notice |
| 2025-12-31 | Four oil-trade firms + four tankers designated | OFAC (press release SB0348) |
The Chevron Exception
Chevron remains the sole major US producer operating in Venezuela, under an OFAC license that confines it to pre-existing PDVSA joint ventures, bars new projects, and — under the 2025 revisions — restricts exports of JV petroleum to destinations other than the United States. President Trump announced the reversal of the Biden-era Chevron authorization on 26 February 2025; OFAC issued the wind-down license (GL 41A) on 4 March 2025, with the period later extended via GL 41B. This authorized channel — reported around 250,000 bpd to the US in January 2025 — sits alongside, and is dwarfed by, the unauthorized shadow flow to China described below.
| Channel | Destination | Approx. Volume | Concealment |
|---|---|---|---|
| Chevron JV (licensed) | United States | ~250k bpd (Jan 2025 reported) | None — transparent |
| Shadow fleet | China (via Malaysia STS) | ~613k bpd to China (Nov 2025) | AIS spoofing, STS, relabelling |
Export Reality: The China Pipeline
Despite the blockade, Venezuelan crude exports rebounded sharply. Tanker-monitoring data placed 2025 outflows in the 750,000–966,000 bpd range, peaking near 966,000 bpd in August and holding above 900,000 bpd into November (roughly 921,000 bpd; TankerTrackers cited 967,000 bpd of crude, fuel oil and methanol in November). High Multiple datasets converge on the destination: China absorbs roughly 75–80% of output, with November Chinese intake reported around 613,000 bpd. Crucially, China's official customs data badly understates this — recording only about 30,000 bpd — because the crude arrives re-papered as third-country origin.
| Metric | Reported Figure | Confidence |
|---|---|---|
| Annual export range | ~750,000–966,000 bpd | High |
| August 2025 peak | ~966,000 bpd | High |
| November 2025 | ~921,000–967,000 bpd | High |
| Share to China | ~75–80% of output | High |
| China official customs figure | ~30,000 bpd (understated) | Reported |
| Oil as share of state revenue | ~95% | High |
The economic logic is rigid: with oil supplying around 95% of state revenue, every barrel reaching a Chinese teapot refinery directly funds the regime. Beijing's leverage runs deeper still — China Development Bank extended roughly $60 billion in oil-backed loans, leaving an estimated $10–12 billion in outstanding Chinese debt (down from $16.7 billion in 2019), with an average of only 50,000–100,000 bpd allocated to debt service since 2020.
The Concealment Toolkit
The Venezuelan shadow fleet runs the same concealment stack documented across the Russian and Iranian dark fleets. Analysts reconstructing these voyages rely on AIS-gap detection, optical and SAR satellite imagery, and draft-change analysis — the methodology we detail in our vessel-tracking field guide and STS-transfer methodology.
| Technique | What It Does | OSINT Counter-Indicator |
|---|---|---|
| AIS disablement / "going dark" | Transponder off to hide position | Unexplained AIS gaps over loading zones |
| AIS spoofing | Broadcasts false GPS coordinates | Position vs. satellite imagery mismatch |
| Ship-to-ship (STS) transfer | Cargo moved hull-to-hull at sea | Two vessels rafted, matching draft changes |
| Relabelling / ghost cargo | Crude re-papered as Malaysian/Brazilian origin | Origin volumes exceeding national production |
| Flag-of-convenience hopping | Rapid reflagging / renaming | Same IMO, multiple names/flags in months |
| Opaque-registry shell owners | Mauritius/Seychelles single-ship firms | No public beneficial-ownership data |
The Skipper case illustrates the full stack. The Guyana-flagged tanker (formerly Adisa) had loaded crude at Iran's Kharg Island terminal and shuttled between Iran, Venezuela, and China, broadcasting a false position off Guyana while actually loading at Venezuela's José terminal — a spoof exposed by satellite imagery. Reported
The Malaysia Laundering Node
Malaysia functions as a transit and concealment hub, not a consumption market. Venezuelan crude is moved through Malaysian waters via STS and re-papered as Malaysian- or Brazilian-origin before final delivery to Chinese buyers. The tell is arithmetic: reported "Malaysian" crude volumes routinely exceed what Malaysia physically produces — a ghost-cargo signature analysts use to size the flow. Roughly 82 million barrels of Venezuelan crude were reported stored on tankers off China and Malaysia in early 2026, a floating cushion against export disruption.
| Stage | Location | Action |
|---|---|---|
| 1. Load | Venezuelan terminals (José, Amuay) | Load PDVSA crude, AIS often dark |
| 2. First leg | Caribbean / Atlantic | Spoofed or absent positions |
| 3. STS transfer | Off Venezuela, Gulf of Guinea, or SE Asia | Cargo moved to second hull |
| 4. Relabel | Malaysian waters | Re-papered as third-country origin |
| 5. Discharge | Chinese ports (Shandong teapots) | Sold at discount to independent refiners |
The Shared Dark Fleet: Russia, Iran, Venezuela
The most important structural finding for sanctions analysts is that there is no discrete "Venezuelan fleet." There is one global pool — estimated at well over 1,400 ships — of aging, opaquely owned tankers that rotates among the three largest sanctioned-oil exporters as demand and enforcement risk shift. Critical US authorities and independent experts have documented hulls that ran Iranian crude reappearing on Venezuelan routes; the same flag registries, the same single-ship shell companies (often in Mauritius and the Seychelles), and the same STS choreography recur across all three programs.
The Iran–Venezuela Reciprocal Trade
The overlap is deepest with Iran. Venezuela and Iran signed a 20-year cooperation agreement on 11 June 2022 spanning oil, petrochemicals, the military, and the economy; Iran supplied over 12 million barrels of crude and condensate to Venezuela in 2023. The shipping pattern is reciprocal: National Iranian Tanker Company (NITC) vessels discharge Iranian crude and condensate at Venezuelan ports, then load Venezuelan fuel oil for the return leg to China. One analysis of S&P Global data found the Gulf of Guinea hosted 19 STS transfers between May and October involving US-sanctioned NITC, Iran's Rahbaran Omid Darya Ship Management, and PDVSA. High
| Attribute | Russia | Iran | Venezuela |
|---|---|---|---|
| AIS spoofing / dark transits | Yes | Yes | Yes |
| STS to obscure origin | Yes | Yes | Yes |
| Third-country relabelling | Yes | Yes (Malaysia) | Yes (Malaysia/Brazil) |
| Single-ship shell owners | Yes | Yes | Yes |
| Primary end-buyer | India / China | China | China |
The flagship case study is the tanker Marinera (formerly Bella 1), a Russian-flagged vessel sanctioned by the US in 2024 over Hizballah-linked Iranian oil trafficking, then seized by US and UK forces in the North Atlantic on 7 January 2026 for moving oil tied to Venezuela, Russia, and Iran — a single hull touching all three regimes. Reflagging compounds the problem: over 70% of sanctioned vessels changed flags during 2025, and reporting indicated a wave of tankers reflagging to Russia's registry as few other jurisdictions would accept them.
The practical implication: due diligence must be vessel-centric and cross-program. A hull's clean Venezuelan-trade record is meaningless if its IMO appears in Iranian or Russian datasets. Compare the operator-network mapping in our Sovcomflot network brief and the corridor-level analysis in the INSTC Caspian corridor brief.
The Late-2025 Enforcement Pivot
Through 2025 the US shifted from paper designations to physical interdiction. On 31 December 2025, OFAC designated four companies operating in Venezuela's oil sector and identified four tankers as blocked property (Treasury press release SB0348). Reported The designated firms span Hong Kong, mainland China (Zhejiang), and offshore registries — consistent with the Chinese-buyer end of the pipeline.
| Designated Company | Associated Vessel(s) |
|---|---|
| Corniola Limited | NORD STAR |
| Krape Myrtle Co LTD | NORD STAR |
| Winky International Limited | ROSALIND (a.k.a. LUNAR TIDE) |
| Aries Global Investment LTD | DELLA; VALIANT |
The designation campaign ran in parallel with a physical-interdiction effort under Operation Southern Spear. The US began seizing tankers on 10 December 2025 with the Skipper and, by late February 2026, open reporting tracked roughly ten vessels intercepted across the Caribbean, Atlantic, and Indian Ocean — carrying on the order of millions of barrels combined. PDVSA responded by holding tankers in Venezuelan waters and reportedly began shutting Orinoco Belt wells as a last resort.
Reported Seizure events below are from open reporting as of early 2026 and may be updated.
| Vessel | Date | Location / Note |
|---|---|---|
| Skipper (ex-Adisa) | 2025-12-10 | Caribbean; prior Iran/Venezuela trade |
| Centuries | 2025-12-20 | Near Venezuela |
| Marinera / Bella 1 | 2026-01-07 | N. Atlantic; Russia/Iran/Venezuela links |
| M Sophia | 2026-01-07 | Caribbean; "stateless, sanctioned" |
| Olina (ex-Minerva M) | 2026-01-09 | Caribbean; false Timor-Leste flag |
| Veronica | 2026-01-15 | Caribbean |
| Sagitta | 2026-01-21 | Caribbean |
| Aquila II | 2026-02-09 | Indian Ocean |
| Tier | Instrument | Effect |
|---|---|---|
| 1 | Entity / vessel designation | Blocks property, deters insurers/ports |
| 2 | Secondary-sanctions exposure | Pressures Chinese buyers, refiners |
| 3 | License termination (Chevron wind-down) | Removes authorized revenue carve-outs |
| 4 | Physical interdiction / seizure | Removes hulls and cargo from the trade |
Analytic Outlook
Vessel-by-vessel designation alone did not stop the flow — exports rebounded even as the sanctioned-vessel count climbed, because the shared global fleet replaces designated hulls faster than they can be listed. The late-2025 pivot to physical interdiction raises the cost of each voyage and has already squeezed exports, but also raises escalation risk and drew formal objections from Russia and China. For analysts, the durable lesson is structural: track the fleet, not the flag. Cross-reference IMO numbers against Russian and Iranian datasets, watch for ghost-cargo arithmetic in "Malaysian" volumes, and treat any single-ship shell owner as a network node, not an endpoint. Practitioners can apply these checks using our OSINT vessel tools and the sanctions-compliance services we offer.
| Indicator | Why It Matters |
|---|---|
| AIS gap over José / Amuay terminals | Likely dark loading of PDVSA crude |
| IMO present in Iran/Russia datasets | Shared-fleet contamination risk |
| "Malaysian crude" exceeding production | Ghost-cargo relabelling signature |
| Rapid rename + reflag of same IMO | Identity-laundering to dodge listing |
| Rafted-vessel imagery + draft change | Confirms STS cargo transfer |
| NITC hull discharging at Venezuelan port | Iran-Venezuela reciprocal trade leg |
Frequently Asked Questions
How is Venezuelan oil still reaching market despite US sanctions?
Through a shadow fleet that disables or spoofs AIS, conducts ship-to-ship transfers at sea, and relabels the crude as Malaysian or Brazilian origin before delivering it — overwhelmingly to Chinese refiners. Tanker-tracking data placed 2025 exports at roughly 750,000–966,000 bpd despite the blockade, even as China's official customs recorded only about 30,000 bpd.
When was PDVSA sanctioned, and under what authority?
OFAC designated PDVSA on 28 January 2019 under Executive Order 13850, blocking all its US-jurisdiction property and extending the freeze to its 50%-or-greater joint ventures. A companion order, EO 13857, defined the Maduro regime as the "Government of Venezuela."
Why is Venezuela's fleet connected to Russia and Iran?
Because it is largely the same fleet. Aging, opaquely owned tankers rotate among Russian, Iranian, and Venezuelan cargoes using identical concealment tradecraft. The Marinera (ex-Bella 1), seized in January 2026, carried oil tied to all three regimes; NITC tankers run a reciprocal Iran-to-Venezuela-to-China loop under a 20-year 2022 cooperation pact.
What did the 31 December 2025 OFAC action target?
OFAC designated four oil-trade companies (including Hong Kong- and China-based firms) and identified four tankers — NORD STAR, ROSALIND/LUNAR TIDE, DELLA, and VALIANT — as blocked property (press release SB0348).
How large is Venezuela's shadow fleet, and how much has been sanctioned?
Open reporting in December 2025 assessed roughly 75 tankers in Venezuelan waters as shadow-fleet vessels, of which about 38 were sanctioned. Broader counts of the Venezuela-serving fleet run higher (up to ~400 vessels, ~40% sanctioned), depending on scope — leaving a large operational remainder at any time.
Is any Venezuelan oil exported legally?
Yes. Chevron operates pre-existing PDVSA joint ventures under an OFAC license, reported around 250,000 bpd to the US in early 2025. That authorized channel is small relative to the shadow flow to China and is tightly restricted by General Licenses 41A/41B following the February-March 2025 reversal.
Sources
- U.S. Department of the Treasury — "Treasury Targets Oil Traders Engaged in Sanctions Evasion for Maduro Regime" (press release SB0348, 31 Dec 2025). home.treasury.gov/news/press-releases/sb0348
- U.S. Department of the Treasury — "Treasury Targets Illegitimate Maduro Regime Insiders and Sanctions Evaders in Venezuela's Oil Sector" (press release SB0332). home.treasury.gov/news/press-releases/sb0332
- OFAC — "Issuance of a New Venezuela-related Executive Order and General Licenses; Venezuela-related Designation" (PDVSA designation, 28 Jan 2019). ofac.treasury.gov/recent-actions/20190128
- OFAC — Venezuela-Related Sanctions program page. ofac.treasury.gov/sanctions-programs-and-country-information/venezuela-related-sanctions
- Federal Register — "Publication of Venezuela Sanctions Regulations Web General Licenses 41A, 5R, and 41B" (23 Jul 2025). federalregister.gov
- Congressional Research Service — "Venezuela: Overview of U.S. Sanctions Policy" (IF10715). congress.gov/crs-product/IF10715
- Wikipedia — "Venezuelan shadow fleet." en.wikipedia.org/wiki/Venezuelan_shadow_fleet
- Wikipedia — "2025–2026 United States oil blockade of Venezuela (Operation Southern Spear)." en.wikipedia.org/wiki/United_States_oil_blockade_during_Operation_Southern_Spear
- Kharon — "Why Are So Many Countries Now Seizing Shadow Fleet Tankers?" (Iran/Russia/Venezuela overlap, "shared ecosystem"). kharon.com/brief/shadow-fleet-iran-news-russia-venezuela-oil-sanctions
- Middle East Institute — "How Iran, China, and Russia Use the Shadow Fleet to Evade US Sanctions." mei.edu/policymemo/how-iran-china-and-russia-use-the-shadow-fleet-to-evade-us-sanctions
- United Against Nuclear Iran — "The Maduro-Khamenei Oil Alliance: Foreign-Flagged Vessels Shipping Iranian and Venezuelan Oil." unitedagainstnucleariran.com
- U.S. Department of Justice — "United States Seeks Forfeiture of Oil Tanker and 1.8M Barrels of Crude Oil That Supported Iran and Venezuela." justice.gov/opa/pr
- Center on Global Energy Policy, Columbia SIPA — "US Action Threatens Venezuela-China Oil Flows, Debt Repayment, and Investments." energypolicy.columbia.edu
- CSIS — "Why Did the United States Seize a Venezuelan Oil Shipment?" csis.org/analysis/why-did-united-states-seize-venezuelan-oil-shipment
- Atlantic Council — "When economic warfare meets gunboat diplomacy: US seizures of shadow fleet tankers." atlanticcouncil.org
- CNBC — "How U.S. oil tanker seizures targeting Venezuela are linked to rising tensions with China" (22 Dec 2025). cnbc.com/2025/12/22/tanker-seizures-venezuela-oil-china.html