Limited AIS coverage — Terrestrial AIS coverage near Singapore is sparse, so the vessel count here undercounts actual port traffic. Anomalies and signals are measured against Singapore's own baseline — treat the count as a relative trend, not an absolute level.
Singapore
Oil / LNGLOW CONGESTION
World's largest bunkering port and a key LNG transshipment hub. High tanker and LNG carrier counts signal robust energy trade through the Strait of Malacca. Unusual floating storage indicates supply gluts or demand shocks in crude and LNG markets.
Live Vessel Traffic
Tradeable Assets
How each asset relates to congestion at this port
Stocks
Flex LNG
LNG shipping pure play · highly correlated to Singapore tanker traffic
$124.53
▲ 1.73%
Golar LNG
LNG shipping + infrastructure · moves on floating storage anomalies
$51.07
▲ 0.45%
Futures
WTI Crude (futures)
Floating storage anomalies at Singapore are a direct crude supply signal
$82.14
▼ 1.27%
Natural Gas (futures)
LNG tanker clustering is a leading indicator for Henry Hub prices
$2.79
▲ 0.83%
ETFs
US Oil Fund ETF
ETF version of CL for traders who don't do futures
$127.30
▼ 0.24%
US Natural Gas ETF
ETF version of NG for traders who don't do futures
$10.20
▲ 1.29%
Current Snapshot
40
Total Vessels
29
Anchored
73%
Anchored %
2.6
Avg Dwell (hrs)
29 vessels anchored (73%)
Anchored tankers holding crude or LNG offshore — elevated counts signal supply glut or demand shock, bullish for storage plays.
Energy Fundamentals
EIA weekly · spreads calculated liveUS Crude Stocks
424,410k
bbls
+17.4M
BUILD
US commercial crude stocks — build = bearish, draw = bullish
Cushing Stocks
22,566k
bbls
+1.6M
BUILD
WTI delivery hub — high stocks suppress futures price
Brent-WTI Spread
$5.74
BZ − CL
Widening = logistics stress or US supply glut. Normal range $1–$5.
3-2-1 Crack Spread
$56.20
Refinery margin / bbl
High = strong product demand, bullish for crude. Low = demand weakness.
History
Congestion score · grey band = 7d normal range · Vessel count (dashed) · FLEX price (purple)
Lead-lag: over the last 30 days, Singapore congestion led FLEX by 2 days · r = +0.69 (strong positive) · 10-day sample, directional not predictive
Port Throughput
1
Currently in port
199
Completed calls
2.6h
Avg dwell time
| Vessel | Class | Arrived | Departed | Dwell |
|---|---|---|---|---|
| COSCO PRINCE RUPERT | unknown | 2026-08-05 | 2026-08-05 | 2h |
| PSAB | unknown | 2026-08-05 | 2026-08-05 | 2h |
| HY MEDWAY | unknown | 2026-08-05 | 2026-08-05 | 2h |
| STENA IMPERATOR | tanker | 2026-08-05 | 2026-08-05 | 2h |
| H7SFC1 | unknown | 2026-08-05 | 2026-08-05 | 2h |
| NOBLE JEWEL TG45 | unknown | 2026-08-05 | 2026-08-05 | 2h |
| FRONT HUMBER | unknown | 2026-08-05 | 2026-08-05 | 2h |
| QUANTUM HARMONY | unknown | 2026-08-05 | 2026-08-05 | 2h |
| AYER MANIS | unknown | 2026-08-05 | 2026-08-05 | 4h |
| MAJESTIC PASSION | unknown | 2026-08-05 | 2026-08-05 | 2h |
Signal History
9d ago
Singapore Vessel Drop: Bearish energy
Singapore shows Vessel count 16 is 1.7σ below same-hour baseline (avg 40). This typically leads energy markets by 5-10 days, supporting a bearish read on CL (currently $91.315, -0.7% 5d).
Triggered By
Vessel count 16 is 1.7σ below same-hour baseline (avg 40)
Trade Idea
Short CL (currently $91.315, -0.7% 5d) while vessel count holds below 16 into the next poll; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (9d ago) — check the live tape before acting.
Entry
Vessel count holds below 16 into the next poll
Invalidation
vesselCount reverts toward baseline (40) within 48h, or CL rises above $94.05
Horizon
3-7 days
Affected Assets
CL
$82.14
▼ 1.27%
NG
$2.79
▲ 0.83%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
11d ago
Singapore Congestion Spike: Bullish energy
Singapore shows Congestion score 76 is 2.7σ above same-hour baseline (avg 44). This typically leads energy markets by 5-10 days, supporting a bullish read on FLEX (currently $113.75, -4% 5d).
Triggered By
Congestion score 76 is 2.7σ above same-hour baseline (avg 44)
Trade Idea
Long FLEX (currently $113.75, -4% 5d) while congestion holds above 76 for 2+ consecutive polls; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (11d ago) — check the live tape before acting.
Entry
Congestion holds above 76 for 2+ consecutive polls
Invalidation
congestionScore reverts toward baseline (44) within 48h, or FLEX falls below $110.34
Horizon
3-7 days
Affected Assets
FLEX
$124.53
▲ 1.73%
closed
GLNG
$51.07
▲ 0.45%
closed
CL
$82.14
▼ 1.27%
NG
$2.79
▲ 0.83%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
12d ago
Singapore Congestion Relief: Bearish energy
Singapore shows Congestion score 25 is 2σ below same-hour baseline (avg 53). This typically leads energy markets by 5-10 days, supporting a bearish read on CL (currently $91.33, +0.6% 5d).
Triggered By
Congestion score 25 is 2σ below same-hour baseline (avg 53)
Trade Idea
Short CL (currently $91.33, +0.6% 5d) while congestion holds below 25 for 2+ consecutive polls; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (12d ago) — check the live tape before acting.
Entry
Congestion holds below 25 for 2+ consecutive polls
Invalidation
congestionScore reverts toward baseline (53) within 48h, or CL rises above $94.07
Horizon
3-7 days
Affected Assets
CL
$82.14
▼ 1.27%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
14d ago
Singapore Congestion Relief: Bearish energy
Singapore shows Congestion score 35 is 1.8σ below same-hour baseline (avg 59). This typically leads energy markets by 5-10 days, supporting a bearish read on CL (currently $93.28, +1.8% 5d).
Triggered By
Congestion score 35 is 1.8σ below same-hour baseline (avg 59)
Trade Idea
Short CL (currently $93.28, +1.8% 5d) while congestion holds below 35 for 2+ consecutive polls; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (14d ago) — check the live tape before acting.
Entry
Congestion holds below 35 for 2+ consecutive polls
Invalidation
congestionScore reverts toward baseline (59) within 48h, or CL rises above $96.08
Horizon
3-7 days
Affected Assets
CL
$82.14
▼ 1.27%
NG
$2.79
▲ 0.83%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
16d ago
Singapore Vessel Surge: Bullish energy
Singapore shows Vessel count 63 is 1.7σ above same-hour baseline (avg 48). This typically leads energy markets by 5-10 days, supporting a bullish read on FLEX (currently $116.07, -3.2% 5d).
Triggered By
Vessel count 63 is 1.7σ above same-hour baseline (avg 48)
Trade Idea
Long FLEX (currently $116.07, -3.2% 5d) while vessel count holds above 63 into the next poll; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (16d ago) — check the live tape before acting.
Entry
Vessel count holds above 63 into the next poll
Invalidation
vesselCount reverts toward baseline (48) within 48h, or FLEX falls below $112.59
Horizon
3-7 days
Affected Assets
FLEX
$124.53
▲ 1.73%
closed
GLNG
$51.07
▲ 0.45%
closed
CL
$82.14
▼ 1.27%
NG
$2.79
▲ 0.83%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
17d ago
Singapore Congestion Relief: Bearish energy
Singapore shows Congestion score 27 is 2.2σ below same-hour baseline (avg 55). This typically leads energy markets by 5-10 days, supporting a bearish read on CL (currently $90.75, -2.4% 5d).
Triggered By
Congestion score 27 is 2.2σ below same-hour baseline (avg 55)
Trade Idea
Short CL (currently $90.75, -2.4% 5d) while congestion holds below 27 for 2+ consecutive polls; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (17d ago) — check the live tape before acting.
Entry
Congestion holds below 27 for 2+ consecutive polls
Invalidation
congestionScore reverts toward baseline (55) within 48h, or CL rises above $93.47
Horizon
3-7 days
Affected Assets
CL
$82.14
▼ 1.27%
NG
$2.79
▲ 0.83%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
19d ago
Singapore Congestion Spike: Bullish energy
Singapore shows Congestion score 58 is 1.8σ above same-hour baseline (avg 43). This typically leads energy markets by 5-10 days, supporting a bullish read on FLEX (currently $118.51, -0.6% 5d).
Triggered By
Congestion score 58 is 1.8σ above same-hour baseline (avg 43)
Trade Idea
Long FLEX (currently $118.51, -0.6% 5d) while congestion holds above 58 for 2+ consecutive polls; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (19d ago) — check the live tape before acting.
Entry
Congestion holds above 58 for 2+ consecutive polls
Invalidation
congestionScore reverts toward baseline (43) within 48h, or FLEX falls below $114.95
Horizon
3-7 days
Affected Assets
FLEX
$124.53
▲ 1.73%
closed
GLNG
$51.07
▲ 0.45%
closed
CL
$82.14
▼ 1.27%
NG
$2.79
▲ 0.83%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
20d ago
Singapore Congestion Relief: Bearish energy
Singapore shows Congestion score 31 is 2.4σ below same-hour baseline (avg 61). This typically leads energy markets by 5-10 days, supporting a bearish read on CL (currently $90.08, -4.2% 5d). Note: the asset has already moved in this direction over the past week, so part of the move may be priced in.
Triggered By
Congestion score 31 is 2.4σ below same-hour baseline (avg 61)
Trade Idea
Short CL (currently $90.08, -4.2% 5d) while congestion holds below 31 for 2+ consecutive polls; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (20d ago) — check the live tape before acting.
Entry
Congestion holds below 31 for 2+ consecutive polls
Invalidation
congestionScore reverts toward baseline (61) within 48h, or CL rises above $92.78
Horizon
3-7 days
Affected Assets
CL
$82.14
▼ 1.27%
NG
$2.79
▲ 0.83%
⚠ Much of the move may already be priced in. An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
21d ago
Singapore Congestion Spike: Bullish energy
Singapore shows Congestion score 72 is 1.7σ above same-hour baseline (avg 53). This typically leads energy markets by 5-10 days, supporting a bullish read on FLEX (currently $127, -1.3% 5d).
Triggered By
Congestion score 72 is 1.7σ above same-hour baseline (avg 53)
Trade Idea
Long FLEX (currently $127, -1.3% 5d) while congestion holds above 72 for 2+ consecutive polls; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (21d ago) — check the live tape before acting.
Entry
Congestion holds above 72 for 2+ consecutive polls
Invalidation
congestionScore reverts toward baseline (53) within 48h, or FLEX falls below $123.19
Horizon
3-7 days
Affected Assets
FLEX
$124.53
▲ 1.73%
closed
GLNG
$51.07
▲ 0.45%
closed
CL
$82.14
▼ 1.27%
NG
$2.79
▲ 0.83%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
24d ago
Singapore Anchored Backlog: Bearish energy
Singapore shows 54% anchored (3.3σ above baseline avg of 28%) — elevated floating storage or backlog signal. This typically leads energy markets by 5-10 days, supporting a bearish read on CL (currently $92.98, +0.8% 5d).
Triggered By
54% anchored (3.3σ above baseline avg of 28%) — elevated floating storage or backlog signal
Trade Idea
Short CL (currently $92.98, +0.8% 5d) while anchored ratio stays near 54% into the next poll; target a 3-7 days hold as port data typically leads energy by ~5-10 days.
Any prices referenced are as of the signal time (24d ago) — check the live tape before acting.
Entry
Anchored ratio stays near 54% into the next poll
Invalidation
anchoredRatio reverts toward baseline (28) within 48h, or CL rises above $95.77
Horizon
3-7 days
Affected Assets
CL
$82.14
▼ 1.27%
NG
$2.79
▲ 0.83%
⚠ An OPEC+ guidance change or macro demand shock could override this port-level signal.
Systematic signal · rule-based engine
About Singapore
Why does Singapore port congestion matter for traders?
World's largest bunkering port and a key LNG transshipment hub. High tanker and LNG carrier counts signal robust energy trade through the Strait of Malacca. Unusual floating storage indicates supply gluts or demand shocks in crude and LNG markets.
Which stocks, futures, and ETFs are correlated with Singapore?
HarborSignal tracks FLEX, GLNG, CL, NG, USO, UNG against Singapore vessel activity. Port flows tend to lead these markets by roughly 5–10 days.
How is Singapore congestion measured?
Vessel positions are collected hourly from AIS transponder data. A congestion score is derived from vessel count and the anchored ratio, then z-scored against a 30-day same-hour baseline to flag anomalies.