Nustar Energy L.P. Common Units (NS)
NS moved a median of -0.06% 30 minutes after news, and +0.39% by the close. How NS actually reacts to news — the realized, point-in-time move the market made, measured across 106 labeled events over the last three years with zero look-ahead.
NS’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 42% | 62 |
| 30-min | -0.06% | 37% | 62 |
| 60-min | +0.06% | 55% | 62 |
| to close | +0.39% | 60% | 62 |
| Middle 50% of NS reactions | -0.41% to +0.15% |
|---|---|
| Median reaction (30-min) | -0.06% |
| Measured reactions | 106 |
Half of all Nustar Energy L.P. Common Units news events land between -0.41% and +0.15% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when NS moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to NS's baseline. Nothing else.
Recent NS events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 15-12G NuStar Energy L.P. | SEC filing · Form 15-12G | SEC EDGAR | — | — | |
| Form EFFECT NuStar Energy L.P. | SEC filing · Form EFFECT | SEC EDGAR | — | — | |
| Form 8-K NuStar Energy L.P. For: May 03 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form POS AM NuStar Energy L.P. | SEC filing · Form POS | SEC EDGAR | — | — | |
| Form POSASR NuStar Energy L.P. | SEC filing · Form POSASR | SEC EDGAR | — | — | |
| Form S-8 POS NuStar Energy L.P. | SEC filing · Form S-8 | SEC EDGAR | — | — | |
| Form 8-K NuStar Energy L.P. For: May 01 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Sunoco LP and NuStar Energy L.P. Announce NuStar’s Unitholder Approval of the Sunoco Transaction | Press release | Business Wire | -0.13% | -2.49% | |
| Form 10-Q NuStar Energy L.P. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.04% | +0.79% | |
| Form 8-K NuStar Energy L.P. For: Apr 23 | SEC filing · Form 8-K | SEC EDGAR | +0.13% | +0.84% | |
| Form 8-K NuStar Energy L.P. For: Apr 22 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +1.70% | |
| Form 8-K NuStar Energy L.P. For: Apr 15 | SEC filing · Form 8-K | SEC EDGAR | -0.15% | -0.83% | |
| NuStar Energy L.P. Declares Conditional Special Distribution | Press release | Business Wire | -0.15% | -0.83% | |
| Form 8-K NuStar Energy L.P. For: Apr 08 | SEC filing · Form 8-K | SEC EDGAR | +0.59% | -0.75% | |
| Sunoco LP and NuStar Energy L.P. Announce Expiration of Hart-Scott-Rodino Act Waiting Period | Press release | Business Wire | +0.59% | -0.75% | |
| Form DEFM14A NuStar Energy L.P. | SEC filing · Form DEFM14A | SEC EDGAR | +0.04% | -1.88% | |
| NuStar Energy L.P.’s Common Unit 2023 Schedule K-1 Tax Packages Now Available | Press release | Business Wire | -0.13% | +0.59% | |
| Form DEF 14A NuStar Energy L.P. For: Dec 31 | SEC filing · Form DEF | SEC EDGAR | -0.14% | -0.98% | |
| Form DEFA14A NuStar Energy L.P. | SEC filing · Form DEFA14A | SEC EDGAR | -0.12% | -0.78% | |
| NuStar Energy L.P.’s Preferred Unit 2023 Schedule K-1 Tax Packages Now Available | Press release | Business Wire | +0.13% | +0.04% | |
| NuStar Energy L.P.’s Update on Availability of 2023 Schedule K-1 | Press release | Business Wire | +0.43% | +0.85% | |
| Form 10-K NuStar Energy L.P. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.11% | +0.32% | |
| Form 8-K NuStar Energy L.P. For: Feb 15 | SEC filing · Form 8-K | SEC EDGAR | +0.17% | +1.53% | |
| NuStar Energy L.P. Reports Solid Fourth Quarter and Full-Year 2023 Earnings Results | Press release | Business Wire | -0.27% | +2.57% | |
| NuStar Energy L.P. Declares Fourth Quarter 2023 Common Unit Distribution and Series A, Series B and Series C Preferred Units Distributions | Press release | Business Wire | +0.28% | +1.89% | |
| SHAREHOLDER NOTICE: Halper Sadeh LLC Investigates NS, BATL, KAMN | Press release | GlobeNewswire | -0.10% | +1.39% | |
| ALERT: Rowley Law PLLC is Investigating Proposed Acquisition of NuStar Energy L.P. | Press release | PR Newswire | -0.30% | -1.22% | |
| Form 8-K NuStar Energy L.P. For: Jan 22 | SEC filing · Form 8-K | SEC EDGAR | -1.54% | +2.75% | |
| NS Stock Alert: Halper Sadeh LLC Is Investigating Whether the Sale of NuStar Energy L.P. Is Fair to Shareholders | Press release | Business Wire | -1.54% | +2.75% | |
| Sunoco LP to Acquire NuStar Energy L.P. in Transaction Valued at $7.3 Billion | Press release | Business Wire | -1.54% | +2.75% | |
| Unitholder Alert: Ademi LLP investigates whether NuStar Energy L.P. has obtained a Fair Price in its transaction with Sunoco | Press release | PR Newswire | -0.05% | -0.14% | |
| NuStar Energy L.P. to Announce Fourth Quarter 2023 Earnings Results on February 15, 2024 | Press release | Business Wire | +0.44% | +1.59% | |
| Form 8-K NuStar Energy L.P. For: Dec 05 | SEC filing · Form 8-K | SEC EDGAR | +0.37% | -0.84% | |
| NuStar to Participate in Upcoming Investor Conferences | Press release | Business Wire | +0.42% | +0.10% | |
| Form 10-Q NuStar Energy L.P. For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.22% | +1.34% | |
| Form 8-K NuStar Energy L.P. For: Nov 02 | SEC filing · Form 8-K | SEC EDGAR | +0.01% | +4.33% | |
| NuStar Energy L.P. Reports Solid Third Quarter 2023 Earnings Results | Press release | Business Wire | +1.07% | +5.69% | |
| NuStar Energy Chooses Casepoint as eDiscovery Solution | Press release | PR Newswire | -0.23% | -0.29% | |
| NuStar Energy L.P. Declares Third Quarter 2023 Common Unit Distribution and Series A, Series B and Series C Preferred Units Distributions | Press release | Business Wire | +0.00% | -0.52% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the NS section they belong to.
Where else NS is measured.
NS earnings → · Analyst actions → · SEC filings →
Other Energy names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Cross Timbers Royalty Trust (CRT) | 109 | 0.00% | 50% |
| Legacy Education Inc. (LGCY) | 108 | +0.82% | 64% |
| Obsidian Energy Ltd. Common Shares (OBE) | 106 | +0.18% | 57% |
| PTT EXPLRTN&PRDTN PLC ADR (PEXNY) | 106 | 0.00% | 4% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Energy names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is Nustar Energy L.P. Common Units's median reaction calculated?
Every labeled NS news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 106 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 37% of NS's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does NS's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.