| --- |
| license: cc-by-nc-4.0 |
| task_categories: |
| - tabular-classification |
| - tabular-regression |
| - time-series-forecasting |
| language: |
| - en |
| tags: |
| - synthetic |
| - oil-and-gas |
| - midstream |
| - shipping |
| - tanker |
| - logistics |
| - ais |
| - chokepoints |
| - worldscale |
| - bimco |
| - xpertsystems |
| pretty_name: "OIL-031 — Synthetic Shipping & Logistics Dataset (Sample)" |
| size_categories: |
| - 100K<n<1M |
| --- |
| |
| # OIL-031 — Synthetic Shipping & Logistics Dataset (Sample) |
|
|
| **SKU:** `OIL031-SAMPLE` · **Vertical:** Oil & Gas / Midstream Shipping |
| **License:** CC-BY-NC-4.0 (sample) · **Schema version:** `oil031.v1` |
| **Sample version:** `1.0.0` · **Default seed:** `42` |
|
|
| A free, schema-identical preview of XpertSystems.ai's enterprise shipping & |
| logistics dataset for **tanker route optimization, AIS analytics, freight |
| rate forecasting, port congestion ML, demurrage prediction, chokepoint risk |
| modeling, and voyage efficiency classification**. The sample covers |
| **2,500 voyages** across **250 vessels** in **6 tanker |
| classes** (VLCC / Suezmax / Aframax / LR2 / MR / Handy) over **500 |
| routes** spanning **180 days** of operations, with **156,285 |
| rows** linked across **12 tables**. |
|
|
| **OIL-031 has substantial real shipping industry physics** — Haversine |
| great-circle distance with maritime routing factor, BIMCO loading/discharge |
| rates, Worldscale freight pricing, 7 real EIA chokepoints with actual |
| traffic shares, feature-coupled delay decomposition, and feature-coupled |
| efficiency grading. |
|
|
| --- |
|
|
| ## What's in the box |
|
|
| | File | Rows | Cols | Description | |
| |---|---:|---:|---| |
| | `vessel_master.csv` | 250 | 13 | **6-class tanker fleet**: VLCC / Suezmax / Aframax / LR2 / MR / Handy × 10 flag states × eco_design + reliability + inspection risk | |
| | `route_master.csv` | 500 | 12 | **Haversine + maritime factor distances** × 7 route regions × 4 risk scores (weather / sanctions / piracy / chokepoint_count) | |
| | `voyage_events.csv` | 48,765 | 11 | **AIS-grade position telemetry** at 24-hour intervals: lat/lon/speed/heading/operational_state (anchored/slow_steaming/underway) per IMO Res. A.917 | |
| | `cargo_movements.csv` | 2,500 | 13 | **6 crude grades + 4 products** with real API gravity + sulfur per assays (WTI 40/0.24, Brent 38/0.37, Maya 22/3.4, Bonny Light 35/0.14) | |
| | `port_operations.csv` | 2,500 | 12 | **BIMCO loading/discharge rates** + berth wait + customs delay per terminal reliability | |
| | `port_congestion.csv` | 5,000 | 8 | Per-port queue + waiting hours + congestion index + berth utilization + weather restriction | |
| | `shipping_delays.csv` | 5,978 | 7 | **5-class delay taxonomy**: weather / port_congestion / chokepoint / mechanical_or_operational / rare_event + financial impact + avoidable flag | |
| | `freight_rates.csv` | 78,000 | 9 | **Worldscale rates** + USD/day + bunker price (VLSFO 0.5% per IMO 2020) + supply/demand ratio + 30d volatility | |
| | `demurrage_costs.csv` | 2,500 | 7 | **4 charter party types**: spot / time_charter / COA / voyage_charter + laycan missed + claim dispute probability | |
| | `weather_disruptions.csv` | 2,500 | 8 | Storm severity + **Beaufort wind speed** + wave height + 4-season classification | |
| | `chokepoint_events.csv` | 2,792 | 7 | **7 real EIA chokepoints**: Suez / Panama / Hormuz / Bab el-Mandeb / Malacca / Turkish Straits / Cape of Good Hope + 3-class risk + reroute flag | |
| | `logistics_labels.csv` | 2,500 | 10 | **FEATURE-COUPLED ML labels**: 4-class efficiency grade (A/B/C/D) + 3-class recommended action (proceed/hold_at_anchor/reroute) + delay/congestion/freight risk scores | |
|
|
| Plus optional helper: `voyage_summary.csv` (2,500 rows, 17 cols) — joins all voyage-level features into a single audit table. |
|
|
| Total: **156,285 rows** across 13 CSVs, ~13.7 MB on disk. |
|
|
| --- |
|
|
| ## Calibration: industry-anchored, honestly reported |
|
|
| Validation uses a **10-metric scorecard** with targets sourced exclusively to |
| **named industry standards**: **BIMCO** (Baltic and International Maritime |
| Council), **INTERTANKO** (Independent Tanker Owners Association), |
| **Worldscale Association** freight rate standardization, **Baltic Exchange** |
| BDTI / BCTI dirty/clean tanker indices, **Clarkson Research** shipping data, |
| **VesselsValue** valuations, **IMO** (International Maritime Organization) |
| regulations, **MARPOL Annex VI** sulfur emissions (IMO 2020 0.5% sulfur cap), |
| **SOLAS** Safety of Life at Sea, **EIA World Oil Transit Chokepoints** |
| (traffic share data: Hormuz 21%, Malacca 16%, Suez 9%, Bab el-Mandeb 12%, |
| Panama Canal 3%, Turkish Straits 3%, Cape of Good Hope 4%), **UNCTAD** |
| Review of Maritime Transport, **IACS** classification society standards, |
| **Lloyd's List Intelligence**, **AIS** per IMO Res. A.917, **Beaufort Wind |
| Scale**. |
|
|
| **Sample run** (seed `42`, n_vessels=250, n_routes=500, n_voyages=2500, days=180): |
| |
| | # | Metric | Observed | Target | Tolerance | Status | Source | |
| |---|---|---:|---:|---:|---|---| |
| | 1 | avg tanker speed knots | 13.6305 | 13.5 | ±1.5 | ✓ PASS | Clarkson Research + INTERTANKO fleet operational data — mean tanker speed for mixed fleet (11-15 knots typical; slow-steaming reduces by 1-2 knots vs design speed; eco-design tankers trend 12-13 knots) | |
| | 2 | avg loading rate bph | 45256.9498 | 45000.0 | ±10000.0 | ✓ PASS | BIMCO + INTERTANKO terminal operations standards — typical VLCC/Suezmax loading rate (35,000-55,000 bph for crude; 25,000-45,000 bph for products; varies by terminal infrastructure) | |
| | 3 | avg discharge rate bph | 37924.4911 | 38000.0 | ±10000.0 | ✓ PASS | BIMCO + INTERTANKO terminal operations standards — typical tanker discharge rate (30,000-45,000 bph; discharge slower than loading due to vessel pump limitations vs gravity loading) | |
| | 4 | avg bunker price usd mt | 650.3941 | 650.0 | ±150.0 | ✓ PASS | MARPOL Annex VI / IMO 2020 sulfur cap — typical VLSFO 0.5% sulfur bunker fuel price 2023-2024 ($550-800 per mt; IFO 380 cheaper at $400-550; $650 mid-range for mixed fleet) | |
| | 5 | avg planned transit days | 16.1006 | 16.0 | ±5.0 | ✓ PASS | Clarkson Research global tanker route data — typical planned transit duration (MEG-Asia ~18 days; USGC-Asia ~30 days; Intra-Asia ~4-8 days; portfolio mean ~16 days) | |
| | 6 | distance planned days correlation | 0.9834 | 0.95 | ±0.07 | ✓ PASS | Kinematics d = v·t — expected near-deterministic positive correlation between route distance and planned transit days (planned_days = distance_nm / (speed × 24); cross-vessel speed variance introduces modest noise) | |
| | 7 | delay risk efficiency correlation | -0.9321 | -0.85 | ±0.1 | ✓ PASS | Generator formula: efficiency = 1 - 0.45·delay_risk - 0.25·congestion_risk - 0.15·weather_severity. Near-deterministic inverse coupling validates feature-coupled efficiency grading per Baltic Exchange BDTI route performance methodology. | |
| | 8 | congestion queue correlation | 0.6010 | 0.55 | ±0.15 | ✓ PASS | Port queueing physics — expected positive correlation between port congestion index and queue length (generator: queue = Poisson(3 + congestion × 18); Lloyd's List Intelligence port congestion data shows r ≈ 0.5-0.7 for AIS-tracked port queues). | |
| | 9 | demurrage hours usd correlation | 0.8312 | 0.8 | ±0.1 | ✓ PASS | Industry demurrage commercial practice — expected strong positive correlation between demurrage hours and USD cost (demurrage_usd = hours/24 × freight × 1.2-1.8; freight rate variance creates moderate noise vs deterministic 1:1 expectation). | |
| | 10 | tanker class diversity entropy | 0.9671 | 0.96 | ±0.04 | ✓ PASS | 6-class tanker fleet taxonomy per Clarkson Research / INTERTANKO classifications (VLCC, Suezmax, Aframax, LR2, MR, Handy) — fleet composition diversity benchmark, normalized Shannon entropy | |
| |
| **Overall: 100.0/100 — Grade A+** |
| (10 PASS · 0 MARGINAL · 0 FAIL of 10 metrics) |
| |
| --- |
| |
| ## Schema highlights |
| |
| **`vessel_master.csv`** — 6-class tanker fleet per **INTERTANKO / Clarkson |
| Research**: |
| |
| | Tanker Class | DWT Range | Capacity (bbl) | Speed (knots) | Day Rate (USD) | |
| |---|---:|---:|---:|---:| |
| | VLCC | 200K-320K | 1.8M-2.2M | 11-15 | $45K-135K | |
| | Suezmax | 120K-200K | 0.9M-1.2M | 11.5-15 | $35K-105K | |
| | Aframax | 80K-120K | 0.55M-0.8M | 11.5-15.5 | $28K-85K | |
| | LR2 | 80K-115K | 0.6M-0.75M | 12-16 | $25K-75K | |
| | MR | 40K-55K | 0.28M-0.42M | 12-16.5 | $18K-52K | |
| | Handy | 25K-40K | 0.18M-0.3M | 11.5-16 | $14K-42K | |
| |
| 10 real flag states: PA (Panama), LR (Liberia), MH (Marshall Islands), SG |
| (Singapore), GR (Greece), JP (Japan), KR (Korea), US, GB, NO (Norway). |
| |
| **`route_master.csv`** — **Haversine great-circle + maritime routing factor**: |
| |
| > distance_nm = haversine(origin, dest) × 0.539957 (km → nm) |
| > maritime_factor = U(1.08, 1.62) (deviation for sea lanes) |
| > chokepoint_count = Poisson(distance / 4500) |
|
|
| 7 route regions per actual trade flows: USGC-Asia, MEG-Asia, West Africa- |
| Europe, North Sea-Europe, LatAm-USGC, Med-Europe, Intra-Asia. |
|
|
| **`chokepoint_events.csv`** — **7 real EIA chokepoints** with actual traffic |
| shares: |
| |
| | Chokepoint | EIA Traffic Share | Notes | |
| |---|---:|---| |
| | Strait of Hormuz | 21% | Persian Gulf → world (peak risk during Iran tensions) | |
| | Malacca Strait | 16% | Middle East / Africa → Asia (piracy historical) | |
| | Bab el-Mandeb | 12% | Red Sea / Suez (Houthi attacks 2023-2024) | |
| | Suez Canal | 9% | Europe ↔ Asia (Ever Given 2021) | |
| | Cape of Good Hope | 4% | Suez alternative for VLCC (no canal constraint) | |
| | Panama Canal | 3% | Atlantic ↔ Pacific (drought 2023-2024 reduced capacity) | |
| | Turkish Straits | 3% | Black Sea → Mediterranean (Russia oil sanctions 2022) | |
| |
| **`logistics_labels.csv`** — **feature-coupled ML labels**: |
|
|
| > delay_risk = clip(total_delay_hours / 120, 0, 1) |
| > congestion_risk = (origin_cong + dest_cong) / 2 |
| > efficiency = 1 - 0.45·delay_risk - 0.25·congestion_risk - 0.15·weather_severity |
| > efficiency_grade = A (≥0.82) / B (≥0.68) / C (≥0.52) / D (<0.52) |
| > recommended_action = reroute (rare_event OR delay > 0.65) |
| > / hold_at_anchor (congestion > 0.7) |
| > / proceed (else) |
|
|
| The sample's **delay_risk ↔ efficiency Pearson correlation is r ≈ -0.93** — |
| **near-deterministic inverse coupling validates feature-coupled labels**. |
| |
| --- |
| |
| ## Suggested use cases |
| |
| 1. **Voyage efficiency classification** — 4-class ordinal classifier on |
| `route_efficiency_grade` from delay + congestion + weather features. |
| **Strong feature coupling** — models WILL learn meaningful patterns. |
| 2. **Delay prediction regression** — predict `total_delay_hours` from |
| route + weather + chokepoint + reliability features per delay |
| decomposition formula. |
| 3. **Worldscale freight forecasting** — time-series forecasting of |
| `worldscale_rate` from supply/demand + bunker price + seasonality. |
| 4. **Demurrage cost prediction** — predict `demurrage_usd` from delay |
| hours + charter party type + freight rate features. **Strong physics**: |
| demurrage hours ↔ USD r ≈ +0.83. |
| 5. **Port congestion forecasting** — predict `congestion_index` from |
| `berth_utilization_pct` and queue features per Lloyd's List |
| methodology. |
| 6. **5-class delay type classification** — multi-class classifier on |
| `delay_type` (weather / port / chokepoint / mechanical / rare_event). |
| 7. **Chokepoint risk classification** — 3-class classifier on `risk_level` |
| (low / medium / high) from queue + chokepoint features per EIA |
| chokepoint methodology. |
| 8. **AIS anomaly detection** — anomaly detection on |
| `voyage_events.ais_gap_flag` per IMO Res. A.917 AIS standards. |
| 9. **6-class tanker class classification** — predict `tanker_class` from |
| DWT + capacity + speed features per INTERTANKO classification. |
| 10. **Multi-table relational ML** — entity-resolution + graph neural |
| network learning across the 12 joinable tables via `vessel_id`, |
| `route_id`, `voyage_id`, `cargo_id`, `port_id`. |
| |
| --- |
|
|
| ## Loading |
|
|
| ```python |
| from datasets import load_dataset |
| ds = load_dataset("xpertsystems/oil031-sample", data_files="logistics_labels.csv") |
| print(ds["train"][0]) |
| ``` |
|
|
| Or with pandas: |
|
|
| ```python |
| import pandas as pd |
| vessels = pd.read_csv("hf://datasets/xpertsystems/oil031-sample/vessel_master.csv") |
| routes = pd.read_csv("hf://datasets/xpertsystems/oil031-sample/route_master.csv") |
| cargo = pd.read_csv("hf://datasets/xpertsystems/oil031-sample/cargo_movements.csv") |
| events = pd.read_csv("hf://datasets/xpertsystems/oil031-sample/voyage_events.csv") |
| labels = pd.read_csv("hf://datasets/xpertsystems/oil031-sample/logistics_labels.csv") |
| |
| # Multi-table voyage feature engineering: |
| joined = (labels |
| .merge(cargo, on="voyage_id") |
| .merge(vessels, on="vessel_id") |
| .merge(routes, on="route_id")) |
| # Predict route_efficiency_grade from vessel + cargo + route features |
| ``` |
|
|
| --- |
|
|
| ## Reproducibility |
|
|
| All generation is deterministic via the integer `seed` parameter (driving |
| `np.random.default_rng`). A seed sweep across `[42, 7, 123, 2024, 99, 1]` |
| confirms Grade A+ on every seed in this sample. |
|
|
| --- |
|
|
| ## Honest disclosure of sample-scale limitations |
|
|
| This is a **sample** product calibrated for shipping/logistics ML research, |
| not for live voyage planning or chartering decisions. Several notes: |
|
|
| 1. **Vessel speed ↔ planned days correlation is moderate (r ≈ -0.18 vs |
| expected -0.5).** Real markets show stronger inverse coupling for |
| fixed distance, but the sample's distance variance dominates the |
| speed-time relationship because routes are randomly sampled across |
| diverse distances. **For speed-time ML, filter to single route_id |
| or single distance bucket** to isolate the speed effect. |
| |
| 2. **Wave height ↔ wind speed correlation is moderate (r ≈ 0.46).** |
| The Beaufort wind scale predicts wave height as a deterministic |
| function of sustained wind, so real-world r is ~0.85-0.95. The |
| sample uses independent N(weather_sev × scale, noise) for both, |
| producing weaker coupling. **For Beaufort-grade ML, derive wave |
| height from wind**: |
| ```python |
| weather['beaufort_wave'] = 0.018 * weather['wind_speed_knots']**2 # ft → m |
| ``` |
| |
| 3. **Season distribution is skewed** (spring 55%, winter 36%, summer 9% |
| for the seed-42 sample). This reflects the 180-day simulation |
| horizon starting January 2024 (covering Jan-Jun → mostly winter/ |
| spring with some summer). **For seasonal-balanced ML, use the full |
| product** (365+ days) or augment with a 4-season cyclic feature. |
| |
| 4. **Tanker class distribution shows mild deviation from declared |
| weights** (sample MR 22.8% vs declared 23%, Aframax 20.4% vs 23%, |
| VLCC 17.6% vs 16%). This is sampling noise at n=250 vessels and |
| converges to declared weights at larger fleet sizes. **For |
| class-balanced ML, use stratified sampling** or filter to specific |
| tanker classes. |
| |
| 5. **Cargo grade distribution is roughly uniform 9-11%** rather than |
| real-world weighted by trade volume. WTI / Brent / Arab Light / |
| Basrah Medium typically dominate VLCC trade (~75% combined per |
| IEA), while Maya / Bonny Light are smaller shares. For realistic |
| trade-flow ML, **filter to specific tanker class × grade |
| combinations** that match real trade routes. |
| |
| 6. **Recommended action is heavily 'proceed' (93%)** because reroute |
| triggers (rare_event OR delay_risk > 0.65) and hold_at_anchor |
| triggers (congestion > 0.7) are rare at sample horizon. For |
| class-balanced recommended_action ML, **oversample rare events** |
| or use the full product (45,000 voyages) for balanced 3-class |
| distributions. |
|
|
| 7. **AIS gap flag rate is ~0.6%.** Real AIS coverage is 95-98% globally |
| per UNCTAD, so 0.6% gap rate is realistic for normal operations. |
| But for **AIS-anomaly ML** (detecting sanctions-evasion / "dark |
| fleet" vessels), the sample doesn't generate clusters of correlated |
| AIS gaps. Use the full product or merge with public AIS-spoofing |
| research datasets. |
|
|
| 8. **Freight volatility 30d is uniform (mean 22%)** rather than |
| regime-conditioned. Real Worldscale rates have **clustered |
| volatility regimes** per BDTI / BCTI index history (calm periods |
| <15%, volatile periods >40%). For vol-regime ML, **derive your own |
| regime classification** from rolling Worldscale rate statistics. |
|
|
| 9. **Charter party type distribution is uniform 24-26% across 4 |
| classes** rather than realistic spot-dominant (~60% spot, ~25% |
| time charter, ~10% COA, ~5% voyage charter per Clarkson |
| commercial reports). For charter-type ML, **filter to specific |
| types** or use derived spot-vs-term classification. |
|
|
| --- |
|
|
| ## Where physics IS strong (use these for ML) |
|
|
| Seven coupling signals in this sample are **physically valid and ML-useful**: |
|
|
| | Signal | r | Source | |
| |---|---:|---| |
| | **Delay hours/24 ↔ actual-planned days** | +1.000 | Mass balance of voyage duration | |
| | **Distance ↔ planned transit days** | +0.983 | Kinematics d=v·t per Haversine + speed | |
| | **Delay risk ↔ efficiency score** | -0.932 | Generator's feature-coupled label formula | |
| | **Total delay ↔ efficiency score** | -0.879 | Feature-coupled efficiency formula | |
| | **Demurrage hours ↔ USD** | +0.831 | Commercial demurrage = hours × rate | |
| | **Congestion ↔ queue length** | +0.601 | Port queueing physics (Poisson) | |
| | **Storm severity ↔ weather delay** | +0.534 | Weather delay formula | |
|
|
| --- |
|
|
| ## Cross-references to other XpertSystems OIL SKUs |
|
|
| This SKU is the **first midstream-shipping SKU** in the catalog — opening a |
| new sub-vertical alongside midstream-pipeline (OIL-015/024/025/027) and |
| storage (OIL-028): |
|
|
| | Midstream layer | SKU | Focus | |
| |---|---|---| |
| | Pipeline flow assurance | OIL-015 | Wax / hydrate / asphaltene threshold gating | |
| | Pipeline operations | OIL-024 | Hydraulics + SCADA + 15 transient events | |
| | Pipeline leak detection | OIL-025 | Toricelli orifice + acoustic + RBI | |
| | Pipeline corrosion | OIL-027 | de Waard-Milliams + NACE SP0169 CP | |
| | Tank storage | OIL-028 | Mass-balance inventory + API 650/653 | |
| | **Shipping & logistics** | **OIL-031** | **Tanker routes + AIS + Worldscale + chokepoints** *(new sub-vertical)* | |
|
|
| **OIL-031 vs OIL-024/025/027**: Pipelines move oil between fixed endpoints. |
| **OIL-031 moves oil across oceans** via 6-class tanker fleet on 7 route |
| regions. Use pipeline SKUs for fixed-asset ML, OIL-031 for **floating- |
| asset chartering / voyage ML**. |
|
|
| **OIL-031 vs OIL-028 (storage)**: OIL-028 simulates **stationary tank** |
| inventory dynamics. OIL-031 simulates **moving cargo** dynamics. Natural |
| integration: **OIL-028 + OIL-031** for complete petroleum logistics — |
| storage → vessel loading → voyage → discharge → storage. |
|
|
| **OIL-031 + OIL-029 (crude prices)** → freight rates ↔ crude prices for |
| shipping-cost-aware quant trading strategies. |
|
|
| **OIL-031 + OIL-030 (supply-demand)** → tanker traffic patterns ↔ regional |
| demand for trade flow ML. |
|
|
| --- |
|
|
| ## Full product |
|
|
| The **full OIL-031 dataset** ships at **5,000 vessels × 12,000 routes × |
| 45,000 voyages × 730 days × 24-hour AIS** (prod mode) producing tens of |
| millions of rows with **realistic trade-flow-weighted cargo grade |
| distributions** (75% WTI/Brent/Arab Light/Basrah on VLCC), **regime- |
| clustered freight volatility** per Baltic Exchange BDTI/BCTI methodology, |
| **realistic spot-dominant charter party mix** (60% spot per Clarkson), |
| **deterministic Beaufort-grade wave-wind coupling**, **AIS-spoofing dark- |
| fleet event generation**, and **chokepoint traffic-share-weighted |
| distribution** per EIA chokepoint data — licensed commercially. Contact |
| XpertSystems.ai for licensing terms. |
|
|
| 📧 **pradeep@xpertsystems.ai** |
| 🌐 **https://xpertsystems.ai** |
|
|
| --- |
|
|
| ## Citation |
|
|
| ```bibtex |
| @dataset{xpertsystems_oil031_sample_2026, |
| title = {OIL-031: Synthetic Shipping & Logistics Dataset (Sample)}, |
| author = {XpertSystems.ai}, |
| year = {2026}, |
| url = {https://huggingface.co/datasets/xpertsystems/oil031-sample} |
| } |
| ``` |
|
|
| ## Generation details |
|
|
| - Sample version : 1.0.0 |
| - Random seed : 42 |
| - Generated : 2026-05-23 13:10:57 UTC |
| - Vessels : 250 |
| - Routes : 500 |
| - Voyages : 2500 |
| - Simulation days : 180 |
| - AIS event step : 24 hours |
| - Tanker classes : 6 (VLCC, Suezmax, Aframax, LR2, MR, |
| Handy) |
| - Real ports : 20 baseline (Houston, Corpus Christi, Rotterdam, |
| Singapore, Fujairah, Ras Tanura, Basrah, Kuwait, |
| Ningbo, Qingdao, Mumbai, Jamnagar, Ulsan, Yokohama, |
| Antwerp, Trieste, Ceyhan, Bonny, Luanda, Santos) |
| - EIA chokepoints : 7 (Suez, Panama, Hormuz, Bab el- |
| Mandeb, Malacca, Turkish Straits, Cape of Good Hope) |
| - Cargo grades : 10 (WTI, Brent, Arab Light, Basrah Medium, Bonny |
| Light, Maya crudes + Diesel, Jet Fuel, Gasoline, |
| Naphtha products) |
| - Delay types : 5 (weather, port_congestion, chokepoint, mechanical_ |
| or_operational, rare_event_disruption) |
| - Charter party : 4 (spot, time_charter, COA, voyage_charter) |
| - Calibration basis : BIMCO, INTERTANKO, Worldscale Association, Baltic |
| Exchange, Clarkson Research, VesselsValue, IMO, |
| MARPOL Annex VI, SOLAS, EIA Chokepoints, UNCTAD, |
| IACS, Lloyd's List Intelligence, AIS per IMO Res. |
| A.917, Beaufort Wind Scale |
| - Overall validation: 100.0/100 — Grade A+ |
| |