Arkolith/Funds/SIR Capital Management, L.P.

SIR Capital Management, L.P.

CIK 1434997
Holdings as of Mar 31, 2026·disclosed May 15, 2026·~45-day 13F lag·13F-HR
Active Filer

SIR Capital Management, L.P. holds a diversified book of 88 stocks worth $1.1B as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened Chord Energy Corp and trimmed Permian Resources Corp-CL A. Their largest long position is Antero Resources Corp at 5% of the equity book.

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holdings, largest changes, and filing provenance.
Opened
35
new positions
Added to
17
existing
Trimmed
31
reduced
Sold out
27
exited

Concentration

Top-heavy: diversified book

Top 5 holdings
22%
Top 10 holdings
39%
Top 20 holdings
61%

Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.

Direct sector allocation

100% mapped to company sectors

Energy
56%
Utilities
22%
Industrials
8%
Materials
7%
Information Technology
4%
Consumer Staples
2%
Consumer Discretionary
1%
Real Estate
0%

Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.

Biggest moves: latest quarter

Estimated $ traded · quarter-end prices, no cost basis

Bought
Trimmed / exited

Holdings: largest first

Bars show each stock's share of the portfolio. Click a row for its position history.

88 positions
#SecurityValueShares% PortLast moveHistory
1Antero Resources Corp
COM
$52.8M1.24M
4.9%
+142%
Added · +729K sh
2Devon Energy Corp New
COM
$52.0M1.03M
4.9%
+104%
Added · +527K sh
3Permian Resources Corp
CLASS A COM
$47.0M2.20M
4.4%
−16%
Reduced · −435K sh
4Expand Energy Corporation
COM
$45.1M410.7K
4.2%
+243%
Added · +291K sh
5Cenovus Energy Inc
COM
$39.2M1.48M
3.7%
+181%
Added · +951K sh
6Oneok Inc New
COM
$39.2M433.2K
3.7%
−8.3%
Reduced · −39K sh
7Ovintiv Inc
COM
$37.8M636.0K
3.5%
+52%
Added · +217K sh
8Halliburton Co
COM
$37.5M961.4K
3.5%
11×
Added · +871K sh
9Freeport McMoran Inc
CL B
$32.8M558.7K
3.1%
−11%
Reduced · −66K sh
10Liberty Energy Inc
COM CL A
$30.9M1.07M
2.9%
+502%
Added · +895K sh
11Kinetik Holdings Inc
COM NEW CL A
$30.5M629.5K
2.8%
−6.3%
Reduced · −43K sh
12Suncor Energy Inc New
COM
$28.7M434.6K
2.7%
+20%
Added · +72K sh
13Phillips 66
COM
$27.2M149.1K
2.5%
+39%
Added · +42K sh
14Magnolia Oil & Gas Corp
CL A
$26.9M851.1K
2.5%
−16%
Reduced · −160K sh
15Chord Energy Corporation
COM NEW
$25.5M179.4K
2.4%
New
New position
16Kinder Morgan Inc Del
COM
$24.8M739.7K
2.3%
−52%
Reduced · −789K sh
17Xcel Energy Inc
COM
$22.0M276.4K
2.1%
−9.4%
Reduced · −29K sh
18TC Energy Corp
COM
$19.3M308.5K
1.8%
−39%
Reduced · −194K sh
19Patterson-Uti Energy Inc
COM
$18.6M1.72M
1.7%
New
New position
20Bunge Global Sa
COM SHS
$17.4M136.6K
1.6%
−4.4%
Reduced · −6K sh
21Chevron Corporation
COM
$16.0M77.4K
1.5%
New
New position
22Targa Res Corp
COM
$15.9M63.4K
1.5%
New
New position
23NRG Energy Inc
COM NEW
$14.9M101.6K
1.4%
+42%
Added · +30K sh
24Delek US Hldgs Inc New
COM
$14.2M314.1K
1.3%
New
New position
25Seadrill Ltd
COM
$13.7M301.8K
1.3%
+96%
Added · +148K sh
26Hudbay Minerals Inc
COM
$13.5M644.5K
1.3%
−13%
Reduced · −100K sh
27California Res Corp
COM STOCK
$13.1M188.7K
1.2%
New
New position
28Propetro Hldg Corp
COM
$13.0M903.1K
1.2%
−33%
Reduced · −443K sh
29Ugi Corp New
COM
$12.8M352.4K
1.2%
+6.9%
Added · +23K sh
30Mastec Inc
COM
$11.7M36.5K
1.1%
−72%
Reduced · −95K sh
31RPC Inc
COM
$11.3M1.60M
1.1%
New
New position
32Apa Corporation
COM
$9.9M234.1K
0.9%
New
New position
33Venture Global Inc
COM CL A
$9.7M618.3K
0.9%
New
New position
34Sempra
COM
$9.7M100.3K
0.9%
New
New position
35Corning Inc
COM
$9.7M71.1K
0.9%
−21%
Reduced · −19K sh
36Forgent Power Solutions Inc
COM SHS CL A
$9.4M322.7K
0.9%
New
New position
37Eog Res Inc
COM
$9.3M64.6K
0.9%
New
New position
38Solaris Energy Infras Inc
COM CL A
$9.3M163.9K
0.9%
−0.6%
Reduced · −1K sh
39Teck Resources Ltd
CL B
$9.0M173.9K
0.8%
New
New position
40Vertiv Holdings Co
COM CL A
$9.0M35.8K
0.8%
−35%
Reduced · −19K sh
41Generac Hldgs Inc
COM
$7.9M40.7K
0.7%
New
New position
42Nvent Elec PLC
SHS
$7.9M67.0K
0.7%
−17%
Reduced · −14K sh
43Cactus Inc
CL A
$7.9M165.7K
0.7%
+463%
Added · +136K sh
44American Elec PWR Co Inc
COM
$7.7M58.4K
0.7%
New
New position
45Evgo Inc
CL A COM
$7.5M4.35M
0.7%
Held
46Cheniere Energy Inc
COM NEW
$7.3M25.8K
0.7%
New
New position
47Honeywell Intl Inc
COM
$7.1M31.4K
0.7%
New
New position
48Profrac Hldg Corp
CLASS A COM
$6.8M1.10M
0.6%
New
New position
49Modine MFG Co
COM
$6.4M29.4K
0.6%
−55%
Reduced · −36K sh
50Exelon Corp
COM
$6.3M129.2K
0.6%
−39%
Reduced · −81K sh
Showing 50 of 88 positions

Filing history

As-of date vs the date the SEC received each filing

QuarterAs ofFiledPositionsValueForm
Q1 2026Mar 31, 2026May 15, 202688$1.1B13F-HR
Q4 2025Dec 31, 2025Feb 13, 202680$903.8M13F-HR
Q3 2025Sep 30, 2025Nov 14, 202578$1.1B13F-HR
Q2 2025Jun 30, 2025Aug 12, 202587$1.1B13F-HR

Data source

Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~45 days after quarter-end. Public domain. The book and weighting are long equity only; disclosed put/call options are listed separately and excluded from those totals. Price-derived performance is withheld until the price-source policy and freshness gate are green.