The HC Commodities Podcast
Episode: Sanctions Strait Talk with David Tannebaum
Host: Paul Chapman, HC Group
Guest: David Tannebaum, Founder & Director, Blackstone Compliance
Date: May 7, 2026
Episode Overview
In this special episode, Paul Chapman welcomes recurring guest David Tannebaum—sanctions and maritime compliance expert—for an urgent, in-depth discussion on the rapidly changing landscape of sanctions in the global commodities sector. The conversation dives into U.S. and European sanctions relating to Venezuela, Russia, and Iran, focusing on recent events including the Iran conflict, the impact on oil flows, the emergence and behavior of the “Dark Fleet,” the role of general licenses, and the growing complexity and cost for firms navigating these regulations. The episode rounds out with a reflection on sanctions as a policy instrument and the uncertain future for negotiated agreements with Iran.
Key Discussion Points & Insights
1. Venezuela: Sanctions Relaxation and Oil Flow Dynamics
- Sanctions Context: The U.S. has consistently been issuing general licenses allowing more activity with Venezuelan oil, primarily facilitating U.S. persons’ involvement, especially in recapitalizing oil infrastructure (02:31–04:16).
- "The US has been on a pretty constant pattern of issuing these licenses...very much US policy that they do want to drive the oil business in Venezuela." —David Tannebaum (03:10)
- Commercial Effects:
- Major trading houses like Vitol and Trafigura quickly took over the flow when sanctions were relaxed; Chevron also remains operational in Venezuela (04:33–05:17).
- Enforcement & the Dark Fleet:
- A significant drop observed in ‘Dark Fleet’ vessels to Venezuela; many shifted towards Iranian and Russian trades.
- Attempted “catch and release” seizures due to the cost and legal ambiguity of detaining flagged and unflagged vessels (05:53–06:54).
- "We let them go...it was a bit of a catch and release." —David Tannebaum (05:53)
- "We did a massive favor to the Dark Fleet." —Paul Chapman (06:54)
2. Russia: Divergence in Sanction Regimes
- Pre-Iran Conflict State:
- U.S. had designated Rosneft and Lukoil but remained “hands off” overall, with EU taking tougher action (08:46–09:51).
- EU’s “20th package” prohibits maritime services and further tightens restrictions—momentarily delayed by the Iran conflict but moves forward after Hungarian political changes.
- Notable: Russian warships now escorting tankers, and PMCs (e.g., Moran Group) provide onboard security as a reaction to European enforcement (07:39–08:10).
- Sanctions Easing Post-Iran Conflict:
- After the U.S.-Iran confrontation on Feb 28, U.S. issues General License 134, temporarily licensing sales and delivery of Russian and Iranian oil (09:56–11:33).
- "[Licensing] the sale of Iranian oil to anyone, including potentially U.S. persons, was not on my 2026 bingo card." —David Tannebaum (11:19)
3. Iran: Legal Limbo and the Limits of Licenses
- Immediate Policy Reaction to Conflict:
- U.S. licenses transactions for Iranian oil already "on the water" to alleviate market pressure (11:35–12:39).
- Tactic exploited: sanctioning vessels mid-shipment to strand cargo, intensifying pain for involved parties.
- Legal and Compliance Chaos:
- License covers sanctions, but Iranian National Oil Company (NIOC) is an FTO; participants still risk criminal prosecution for material support of terrorism (18:16–19:00).
- "You can do this transaction, not violate sanctions, but they would still be in violation of all these other parts of US law." —David Tannebaum (19:00)
- Result: No major legitimate traders or banks touched these Iranian deals—only Dark Fleet and non-U.S. buyers (20:39–21:12).
- "The general license was dead in the water." —David Tannebaum (20:45)
4. The Resurgence and Tactics of the Dark Fleet
- Empowerment by Policy Gaps:
- The general license emboldened actors previously reliant on subterfuge to approach clients openly (14:49–15:41).
- Illicit networks use both crypto and old-school methods (structured check deposits via UAE banks) to move billions, evading sanctions and creating sophisticated global networks (21:59–23:13).
- Wider Security and Illicit Trade Threat:
- Expansion of sanctions-evasion tactics to other illicit trades; sanctions inadvertently create infrastructure for more than just oil (23:13–24:20).
5. Present Situation: Sanctions, Blockades, Legal Quagmires
- U.S. Strategy in Flux:
- Russian oil license renewed; Iranian license expired mid-April (24:45–25:59).
- Ongoing confusion: U.S. enforces targeted seizures rather than a full blockade—utilizing asset forfeiture laws more broadly against Iranian-linked cargos (26:24–28:27).
- "It is very confusing what the administration strategy is..." —David Tannebaum (26:24)
- OFAC Actions:
- OFAC reiterates broad sanctions powers—including “material assistance” triggers that can ensnare teapot refineries in China (29:33–32:57).
- "If you're buying a lot of Iranian oil, that is by definition material assistance." —David Tannebaum (30:25)
6. Compliance Costs, Regulatory Whiplash, and Sanctions Fatigue
- Costs to Firms:
- Compliance resources have surged, sometimes pointlessly due to rapidly shifting rules, sanction-list expansions, and regulatory divergence (36:15–37:38).
- "The last thing you want is to find out that $80M of oil...is actually Iranian." —David Tannebaum (37:34)
- Chilling Effect & Fatigue:
- Fast-changing policies (e.g., the “50% rule" implementation and later reversal) erode confidence, leading firms to hesitate in proactive compliance investments (40:57–42:42).
- "We only get to play that a couple times before people stop proactively investing in compliance..." —David Tannebaum (42:22)
- Legal Risks:
- Courts (UK, elsewhere) sometimes rule against U.S. sanctions, creating real risks of “being stuck in the middle” (38:24–39:22).
7. The Future of Sanctions and the Intractability of "The Iran Deal"
Notable Quotes & Memorable Moments
| Timestamp | Speaker | Quote |
|-----------|---------------|---------------------------------------------------------------------------------------------------------------------|
| 03:10 | Tannebaum | "The US has been on a pretty constant pattern of issuing these licenses...very much US policy..." |
| 06:54 | Chapman | "The US did a massive favor to the Dark Fleet." |
| 11:19 | Tannebaum | "Licensing the sale of Iranian oil to anyone...was not on my 2026 bingo card." |
| 19:00 | Tannebaum | "You can do this transaction, not violate sanctions, but they would still be in violation of all these other laws." |
| 20:45 | Tannebaum | "I have not heard from a single bank or a single commodities trader that's legitimate...they've engaged in these." |
| 23:13 | Tannebaum | "The spice must flow. Anytime you have illicit activity, you have these networks that are developed..." |
| 26:24 | Tannebaum | "It is very confusing what the administration strategy is..." |
| 30:25 | Tannebaum | "If you're buying a lot of Iranian oil, that is by definition material assistance." |
| 37:34 | Tannebaum | "The last thing you want is to find out that $80 million of oil...is actually Iranian." |
| 42:22 | Tannebaum | "We only get to play that a couple of times before people stop proactively investing in compliance..." |
| 44:11 | Tannebaum | "This is awesome; we gave up nothing. The Iranians got snookered." |
| 47:22 | Tannebaum | "My fear is... we’ll have to lift sanctions on [the IRGC]. That would be disastrous for US foreign policy." |
| 49:12 | Tannebaum | "Our biggest loss is credibility. Our European allies probably hate us now..." |
Timestamps for Key Segments
- Venezuela Sanctions Update: 02:31–06:54
- Russia Sanctions Pre & Post Iran Conflict: 07:34–11:33
- US Licensing of Russian/Iranian Oil: 11:33–15:41
- Dark Fleet Empowerment & Money Flows: 15:41–23:13
- Asset Forfeiture, Sanction Enforcement in the Strait: 24:45–29:07
- OFAC, Teapot Refineries, China Sanctions: 29:33–34:28
- Compliance Burdens & Sanctions Fatigue: 36:15–42:42
- Future Iran Deal and Policy Tools: 43:48–47:57
Conclusions & Takeaways
- The world of commodities sanctions is now a patchwork of divergent, rapidly changing regimes, fueling complexity, compliance costs, and new illicit networks.
- U.S. policy—oscillating between tightening and suddenly loosening restrictions—risks both undermining its strategic objectives and fueling sanctions fatigue among firms.
- The past year has seen whiplash: moments when enforcement seemed to work, quickly undercut by “emergency” licensing that revitalized the Dark Fleet and complicated compliance for legitimate operators.
- The original Iran deal's levers are gone; future negotiations will lack essential carrots and stick, likely forcing unpalatable concessions or impasses.
- The big loser may be Western credibility—among both allies and adversaries.
- Firms must remain vigilant: compliance remains existential and legal risks have multiplied with divergence.
For professionals in commodities, compliance, and international policy, this episode is an essential guide to navigating a sanctions landscape in turmoil, filled with practical insights, clear-eyed warnings, and the expert’s view from the front lines.