Related by context. All words. (Click for frequent words.) 63 undeveloped leasehold 62 Royalty Interests 58 farmor 58 leasehold acreage 58 Etame Field 58 Hallwood Energy 57 overriding royalty interest 56 MCLP 56 ORRI 55 overriding royalty 55 Wellsford Whitehall 54 Gross Overriding Royalty 54 BPXC 54 Proved undeveloped reserves 54 GORR 54 Exterran Holdings indirectly 54 Quifa concessions 54 Quest Midstream 54 farmee 53 ProspEx 53 NOARK Pipeline System 53 HighMount 53 Farmee 53 Cinco Terry 53 Marcellus Shale acreage 53 Subordinated Units 53 Acquired Assets 53 undeveloped acreage 53 gross overriding royalty 53 Net Smelter Returns 53 expenses LOE 53 drillsite agreement 53 Atinum 53 Avnel 52 Cardium wells 52 Syncrude Joint Venture 52 Dyami Energy 52 EnerVest 52 Privco 52 Retamco 52 leasehold 52 Operatorship 52 NuLoch 52 Ricinus 52 nonoperated 52 NEG Holding 52 Cana Woodford 52 Hardwoods USLP 52 Shellbridge 52 Abraxas Petroleum owns 52 Buckskin Mesa 52 Rubiales Piriri 52 PNGS 52 Suroriente Block 51 reversionary 51 QEP Energy 51 depletable base 51 promissory note receivable 51 SemCrude LP 51 Val Verde Basin 51 infill wells 51 leasehold interests 51 Jiantou Xinyuan 51 Tableland Saskatchewan 51 Wolfberry trend 51 cubic feet equivalent Bcfe 51 PetroEdge 51 Canext 51 Chelopech Mining EAD Chelopech 51 NEG Holding LLC 51 CREDO owns 51 Barnett Shale acreage 51 acre Potash Subsurface 51 Expo Ungava Property 51 unproved properties 51 Highwoods Realty 51 Mecaya 51 CIECO 51 cubic feet BCF 51 BBEP 51 TRAFINA 51 Common OP Units 51 Morichito Block 51 Terrenex 51 Z2 LLC 51 1P reserves 51 Oyo Oilfield 51 Gastar 50 Cerro Negro concession 50 Bayou Choctaw 50 Overriding Royalty 50 MMSTB 50 SemCanada 50 Permian basin 50 Sanish field 50 antibody humanization patents 50 Enterra Energy Trust 50 Matthys McMillan 50 Canuc 50 Millennium Midstream Partners 50 Coal Bed Methane 50 Suroco 50 securitized receivables 50 Bakken acreage 50 AltaCanada 50 unevaluated properties 50 Sartwelle # 50 Mboe 50 Cheniere Partners 50 Giddings Field 50 USOGP 50 PERH 50 Privateco 50 MMCFPD 50 DDJET 50 Petrodorado 50 TGGT 50 Hugoton Properties 50 Petrol Neodesha 50 HighMount Exploration & 50 Bscf 50 OQI Sask 50 #,#,# #,#,# Minority [002] 50 SOMIKA 50 Farmout 50 Geomark 50 MBoe 50 LP OPCO 50 Calpine Natural Gas 50 Net Profits Interests 50 KPC Pipeline 50 Crocotta 50 Trafina 50 depreciation depletion amortization 50 Unproved 50 Caguan Dindal Rio 49 Teekay Offshore Operating 49 GOM Shelf 49 RWE Dea Norge AS 49 NEGT 49 deducting royalties 49 #/#b [002] 49 Returns Royalty 49 Chamaelo 49 PetroHunter 49 GeoMet 49 equivalent MMcfe 49 nonproducing 49 Royalty Properties 49 Panna Mukta Tapti fields 49 Puskwa 49 BreitBurn Energy 49 Atlas Pipeline 49 per mcfe 49 subordinated indebtedness 49 Intragaz 49 Katonah Debt Advisors 49 Gramercy Realty 49 Kotaneelee 49 NYSE EXH indirectly 49 controls Teekay Offshore 49 intercompany receivables 49 GSR1 49 Proved Developed Producing 49 Royalty NSR 49 plus probable 2P 49 Trafina Energy 49 farmin agreement 49 Elm Grove Field 49 ngl 49 NiMin 49 Atlas Pipeline Partners 49 EWA Concession 49 farmout lands 49 proved reserves YE# 49 MMBoe 49 FDIC indemnification 49 Americas Petrogas 49 depletable 49 Tuscarora Gas Transmission 49 Canexus LP 49 undeveloped leasehold acres 49 GMXR 49 Itiyok #-# Well 49 Exterran Partners 49 contingencies Minority 49 promissory notes payable 49 uphole Cretaceous 49 Arkoma Basin Woodford Shale 49 Pantwist 49 KinderHawk 49 Inuvik Gas 49 Bottrel GORR 49 Texon 49 MMBOE 48 asset monetizations 48 unproved acreage 48 Breitburn 48 horizontal Cardium 48 Denver Julesburg DJ 48 Seco Puli B 48 Williston Basin acreage 48 Arkoma Basin 48 Gordondale 48 Separate Subordinated Notes 48 Hardwoods LP 48 #.# Tcfe 48 shares DISCRETIONARY MANAGED 48 Woodford shale 48 Gryphon Exploration 48 Probable 2P 48 Cequel 48 liquid NGL 48 #-#-#-# W5M [003] 48 securitized accounts receivable 48 Kel Ex 48 QMAC 48 unpatented placer mining 48 Bald Prairie 48 Macerich Partnership 48 Douay Ouest gold 48 Cervus Equipment Corporation 48 Backreef Area 48 MMCFEPD 48 DynaMexico 48 Deepwell 48 DEFS 48 carryforwards 48 Sawn Lake 48 Rio Chubut 48 PetroGlobe 48 Pasquia Hills oil 48 PostRock 48 Upper Montney 48 WestFire 48 Sobey Leased Properties 48 Wolfberry Project 48 unsecured indebtedness 48 GSF Arctic II 48 Vaca Mahuida block 48 barrels MMBbls 48 North Irael 48 Block L#/# 48 Haynesville Fayetteville 48 estimated undiscounted 48 PrivateCo 48 Kaskida Unit 48 Pennaco 48 Fuwan Silver Deposit 48 Montney horizontal 48 #.# MMbbl 48 undrilled acreage 48 Undeveloped land 48 GeoPetro 48 Floating Contracts 48 tcfe 48 lode claims 48 Provident Upstream 48 Optionees 48 Proved + 48 subordinated CMBS 48 Dilly Creek 48 expense LOE 48 TBtu 48 Operating netbacks 48 intercompany indebtedness 48 -FreeAgent Pro 48 Mowood 48 Depletion depreciation amortization 48 PetroCumarebo 48 assume operatorship 48 NLASCO 48 Freehold Royalty Trust 47 Tintaburra Block 47 depletion depreciation 47 undivided beneficial 47 Baytex Energy Ltd. 47 Piceance Basins 47 Promissory notes 47 TAQA Bratani 47 Denver Julesberg Basin 47 Hawkeye Midkiff 47 Ship Shoal Block 47 WaveForm 47 risked unproved resources 47 Petro Grande 47 equivalent BCFE 47 Farmout Agreement 47 Nomac Drilling 47 Blugrass Energy 47 Bois d' Arc's 47 TradeMarkCo Note 47 amortizable 47 Kalegran 47 Fort Worth Barnett Shale 47 EERG 47 Pembina Brazeau 47 Petrosearch Energy 47 Bullion Monarch 47 Pacific Rodera 47 Obangue 47 Barnett Shale formation 47 North Nonacho Property 47 accrued thereon 47 Beetaloo Basin 47 Fuhrman Mascho Field 47 cubic feet equivalent bcfe 47 Common Share Units 47 farmouts 47 Notikewin horizontal 47 unpatented lode mining 47 Bayou Couba 47 Dodsland Viking 47 Cheniere Energy Partners LP 47 Convertible debenture 47 Maranta block 47 addback 47 Quicksilver Resources 47 Mezzanine Loan 47 ExAlta 47 Voisey Bay royalty 47 Steckman Ridge 47 farmout 47 Deepwater Tano License 47 OPL# 47 drillable locations 47 Haynesville Joint Venture 47 #.#/BOE [001] 47 wellbores 47 Hosston Cotton Valley 47 BreitBurn GP 47 Ozona Northeast 47 prorata 47 Leasehold 47 NPREIT 47 Barnett Shale wells 47 Company Ltd CLJC 47 Lower Oligocene reservoir 47 leaseholds 47 Mulgravian 47 Canadon Seco 47 Birchcliff 47 leaseable area 47 Mcfd 47 leasehold acquisitions 47 Stoneham Drilling 47 butane blending 47 Ikhil 47 NSR Royalty 47 Mexico Wolfcamp 47 Trust Enterra 47 Cahaba Basin 47 L#b 47 Magnum Hunter 47 unsecured convertible debentures 47 uncollectable receivables 47 unpatented claims 47 cubic feet mmcf 47 bcfe 47 Net Smelter Royalty 47 TSX ENT.UN 47 Guanajuato Mine Complex 47 fractional undivided 47 Chelopech Mining EAD 47 Putumayo basin 47 Petrodorado Energy 47 nonaccrual loan 46 Anadarko Basins 46 gas equivalent Bcfe 46 Proved Developed Non 46 Australia Julimar Pty 46 DeSoto Parish Louisiana 46 Blueknight Energy Partners LP 46 notional intergroup debt 46 MMcfed 46 MGCL 46 Fuhrman Mascho 46 TVOG 46 unbooked resource potential 46 Block #/#a [001] 46 MBOE 46 Minera SAC 46 equivalent Mcfe 46 TerraVest 46 c Represents 46 Lac Laparre 46 Brazauro Resources Corporation 46 block #/#b 46 income teb 46 Haynesville Marcellus 46 Metallic Ventures 46 Kinsale Head 46 MFB Corp 46 Ikhil Joint Venture 46 mcfpd 46 Equitrans 46 BreitBurn GP LLC 46 Optim Energy 46 GoldSands 46 RCF IV 46 BreitBurn 46 QMLP 46 Mbbl 46 Glauconitic 46 Ivakkak Mequillon Expo 46 Haynesville wells 46 Lower Bossier Haynesville 46 Bossier Shales 46 Drake Woodrush 46 Putumayo Basin 46 PEDL# 46 Farmin 46 Neuquen basin 46 unpatented mineral claims 46 Etame Marin 46 MBOE d 46 Crescendo Partners III 46 Bcfe 46 PKKR 46 subordinated promissory notes 46 mmcfpd 46 #/#a [002] 46 Additional Dornod Property 46 MEP Joint Venture 46 OP Units 46 subordinated convertible notes 46 Bakken wells 46 unpatented lode claims 46 Bakken horizontal wells 46 Haynesville shale 46 Mcfe 46 Quebec Lowlands 46 Landrose 46 FirstAfrica 46 mmcfed 46 #,#,# #,#,# -DH Ellis Burks 46 LibertyBank Acquisition 46 Gippsland Basin 46 SCITI ROCS Trust 46 Enercor Inc. 46 Exploreco 46 Production Sharing Contracts 46 sands silts 46 Granite Wash formation 46 - INCOME LOSS [001] 46 Ad valorem taxes 46 ii fractionating 46 mboe 46 Haynesville Bossier 46 Eagleford 46 Marcellus shale acreage 46 Battrum 46 ROFR 46 Sense EDM 46 Proved Developed 46 accretion expense 46 Chepica Mine 46 Hardwoods Specialty Products 46 Recoverable reserves 46 Cutbank Complex 46 Musreau 46 PVR Midstream 46 intrastate pipeline 46 Bajada del Palo 46 Droshky 46 Troymet 46 Niakuk 46 Midstream Assets 46 Return NSR royalty 46 Kaybob 46 INTEREST REVENUE Loans 46 Cantera Natural Gas 46 Mineral Leases 46 mmcfe 46 obligations hereunder 46 equivalent Mmcfe 46 Canacol 46 Moris mine 46 proved undeveloped PUD 46 MMBbls 46 frac spreads 46 cubic feet equivalents 46 Piceance Uinta 46 Bossier formations 46 BBLS 46 MMcf d 46 Haynesville Shale wells 46 Santa Fe Ipora 46 Maxhamish 46 Frio wells 46 Jingemia 46 Karakuduk 46 Texalta 46 NOARK 46 Haynesville shale wells 46 Universal Compression Partners 46 TCFE 46 Wolfberry Trend 46 Mapimi 46 Etame Marin block 46 Wilrich horizontal 46 L#b A# 46 Aroway 46 Tsiengui 46 refrac 46 #/boe 46 Boe d 46 SPN Resources 46 MMCF 46 CBM acreage 46 uncollectible accounts receivable 46 Interest Expense Interest expense 46 Cardium horizontal wells 46 Aflease Gold Limited 46 Mineral Lease 46 Canadon Seco formation 46 Tanger Properties 46 DCP Midstream LLC 46 nonproducing leases 46 Marcellus leasehold 46 Lateegra 46 TransAlta Cogeneration 46 Farmout Lands 46 BRPI 46 Cusiana 46 matrix porosity 46 Symphony Icon 46 Cory Moruga Block 46 Billion Cubic Feet 46 JDZ Block 4 46 Gething Formation 45 Calvalley 45 Serica Energy plc Serica 45 Exchangeable LP units 45 Whitestone REIT 45 GOM shelf 45 NYSE MHR 45 Deepwater Driller 45 Edirne Licence 45 Bossier shales 45 oil equivalent MMBOE 45 FDIC indemnification asset 45 balance sheet securitizations 45 L8 D 45 Ante Creek 45 Nicolet Permit 45 Changchun Lianhua 45 Proved Reserves 45 Dornod uranium 45 -Ricco Maresca Gallery 45 Wildmere 45 JVCO 45 Commences Drilling Operations 45 Metallurgical Recoveries 45 Transeuro 45 d Represents 45 Universal Compression Holdings 45 farmout agreement 45 probable reserves 45 operatorship 45 MMCFED 45 Proved reserves 45 Evercore LP 45 FairWest 45 Copperstone Gold 45 Enterra Energy 45 Yegua Cook Mountain 45 Petroflow Energy 45 Vanterra 45 Undeveloped Land 45 Rio Magdalena 45 acquires develops manages 45 Abraxas Energy 45 Jonah Pinedale 45 #,#,# #,#,# Inventory 45 West Gharib Concession 45 TransAlta Cogeneration LP 45 3TEC 45 Schefferville Properties 45 MC Dalhousie 45 DWM Petroleum AG 45 probable 2P reserves 45 losses ALLL 45 HBED 45 Pinon Field 45 Subordinated Note 45 Pinuna 45 NOL carryforward 45 BrazAlta 45 horizontal Montney wells 45 Huntingdon REIT 45 KINDER MORGAN ENERGY PARTNERS 45 Phu Horm 45 Dwayne Hommy Trucking 45 Main Dornod Property 45 Gulftex 45 mmbo 45 TriOil 45 nondeductible portion 45 BOE d 45 unamortized portion 45 MMCFD 45 Newfield Exploration Company 45 unaccreted discount 45 Equitable Midstream 45 PEPL 45 Block #/#a [003] 45 nonrecourse mortgage 45 Rosebel Royalty 45 East Ghazalat 45 co venturer 45 PanOcean 45 consolidated VIE 45 Luismin 45 Cana Woodford Shale 45 non capitalizable 45 Transwestern Pipeline Company 45 probable recoverable reserves 45 Colony Granite Wash 45 Proved undeveloped 45 Wolffork 45 Petroflow 45 Quicksilver Gas Services 45 Alange 45 drillsites 45 Saponis 45 BOEPD 45 NGEx 45 Pembina Pipeline Corporation 45 AMH II 45 Entre Lomas concession 45 Montney acreage 45 AMEX FPP 45 mmbbl 45 Montney resource 45 Ansell Sundance 45 Mcfpd 45 Golden Goliath Uruachic 45 NONCURRENT LIABILITIES 45 Moody Rambin Interests 45 sublessee 45 Leaseholds 45 JPVL 45 -blueberry barrens 45 Underlying Option Agreement 45 Denbury 45 BreitBurn Energy Partners 45 AMVEST 45 Buckeye Partners L.P. 45 Dodsland area 45 Non Brokered Financing 45 Puesto Guardian 45 GoldCorp Holdings Co. 45 #.#/unit [001] 45 ATP #P 45 recourse indebtedness 45 Cheniere Marketing 45 Hilcorp 45 uncollectible receivables 45 Haynesville Shale acreage 45 BPLP 45 Asset Acquisition 45 Squatex 45 NGL extraction 45 DPIIP 45 Proved Reserves Increase 45 cubic feet mcf 45 Powder River basin 45 IASIS owns 45 AvenEx 45 Bethany Longstreet Field 45 RedWater 45 Questar E 45 withholdable payment 45 Grantor Trust 45 Goldboro Gold Project 45 Midstream Liquefaction 45 mscf d 45 LP ETE 45 propylene fractionation 45 NOL carryforwards 45 BGH GP Holdings 45 Lessee 45 NAEY 45 Lexaria 45 Samson Lone Star 45 Bethany Longstreet 45 -Paglusch 45 Mining Leases 45 Colstrip Unit 4 45 IREX joint venture 45 #,#.# #,#.# Stockholders equity 45 Loan Payable 45 Forent 45 oil equivalent MMboe 45 Shurgard Europe 45 Terrawest 45 FBIR 45 existing wellbores 45 Farmor 45 Slave Point 45 unitization 45 BRG Petroleum 45 OREO valuation 45 MidCon LLC 45 Ganarin Gold Silver 45 Tartaruga Block 45 Midstream MLP #,# 45 Haynesville Shale formation 45 AmeriGas Propane LP 45 petajoules PJ 45 equivalent mmcfe 45 SemCanada Crude 45 Northrock Resources Ltd. 45 FelCor LP 45 Denver Julesburg Basin 45 QGC coal seam 45 Common Units 45 repossessed assets 45 Secured Debentures 45 Non unitized 45 Wolfberry wells 45 boepd 44 Dodsland 44 accretion DD & 44 linefill 44 Andacollo mine 44 Manitok 44 Minera Guaira 44 coalbed methane wells 44 Probable 2P reserves 44 Amex PHX 44 Mantario 44 Mcf equivalent 44 Quicksilver Resources Inc. 44 Macerich Partnership LP 44 license PL# 44 redeemable preferred 44 horizontal Montney 44 TriAxon Resources Ltd. 44 equivalent MBOE 44 CGB2 44 Telemark Hub 44 MMBO 44 Monto Coal 44 #.#/mcfe 44 PetroCorp 44 Lo Increible 4A 44 lode mining claims 44 EQT Production 44 GasRock 44 Energen Resources 44 Fairborne Energy 44 -Vallipunam 44 Bonavista Petroleum 44 MMcfe d 44 Debenture Financing 44 Cervus LP 44 Cordova Embayment 44 Valle del Cura 44 holdings Nuinsco 44 Drunkard Wash 44 Elba Express 44 Och Ziff Operating 44 Kotaneelee L 44 Mmcfed 44 Letra Rumi South 44 Contingent consideration 44 unamortized deferred 44 BeaconEquity Research nor 44 AvalonBay Value Added 44 Baripetrol 44 perpetual conservation easement 44 Powder River basins 44 Waterflood 44 Asset Retirement Obligation 44 Deep Basin 44 Real Estate Owned OREO 44 Midstream segment 44 Enogex 44 service hydrocarbon transloading 44 Haynesville acreage 44 loan chargeoffs 44 Remainco 44 PetroMed 44 Sonangol Angola 44 mineable coal 44 Symphony GenIsis 44 Bbl d 44 Qara Dagh Block 44 leased NGL 44 Maghena 44 DeeThree 44 Carbones Colombianos del Cerrejon 44 CHKM 44 Exchangeable Unit 44 Discovered PIIP 44 Overland Pass 44 Shale formations 44 Miocene sands 44 multi frac 44 Canshale 44 Participation Agreements 44 GSR2 44 SOQUEM INC. 44 undrilled locations 44 collateralizing 44 prolific Barnett Shale 44 Arbor Realty 44 Consolidated Entities 44 Cardium formation 44 Akdala 44 Transcontinental Gas 44 Bluesky formation 44 Deepwell Energy 44 Fayetteville Shale acreage 44 Exterran stockholders 44 Mmcf d 44 ScissorTail 44 OFCD Optionally Fully 44 Petronas Carigali Overseas 44 Piceance basin 44 Exco Resources Inc. 44 MMBtu d 44 Anadarko Basin 44 Mmcfed net 44 Whiting Petroleum Corporation 44 NYSE APL 44 Wajax Income Fund 44 Sensipar royalties 44 Denver Julesburg 44 Net Smelter Return 44 TSX EIT.UN 44 nonrecourse 44 Turgai Petroleum 44 CaRIT 44 Unsecured Debentures 44 EQT Midstream 44 Scadding Gold 44 Vicpet 44 Endo Pharma LLC 44 Bonavista Energy 44 Lower Montney 44 JDZ Block 44 Barber Larder 44 SCITI 44 Ellora Energy 44 Proved Undeveloped 44 MPEH ™ 44 Bluesky horizontal 44 Deepwater Tano Block 44 Mcf d 44 #,#,# #,#,# Deferred [001] 44 Lordsburg Mining District 44 capitalizable 44 block L#/# 44 drilling recompletions 44 Vaca Mahuida 44 NIOB interval n 44 COGP 44 Loma Montosa 44 Chayvo 44 Coro Mining Corp 44 Secured Facility 44 Cooper Eromanga Basin 44 Sricon 44 Simkar Gold Property 44 Lower Abo 44 Lower Mannville 44 Mexgold 44 Boardwalk Pipeline 44 Puesto Morales Rinconada Concession 44 exchangeable debentures 44 Final Liquidating Distribution 44 Metalmark Capital Partners 44 Chia Surkh Block 44 Haynesville shales 44 Gulftex Operating Inc. 44 Starfish Pipeline 44 Current Liabilities #,#,# #,#,# [002] 44 ONEOK Partners segment 44 Nonaccruing loans 44 wells drilled 44 McMoRan 44 AIMCO Properties LP 44 #,#,# warrants exercisable 44 Cretaceous interval 44 Onshore LP 44 Deep Bossier 44 mcfe d 44 equivalent Tcfe 44 Cherokee Basin 44 Marulk 44 mbbls 44 KUB Gas consist 44 unsecured subordinated debentures 44 Petromanas Energy 44 Woodford shales 44 Contingent Value Rights 44 Miminiska gold 44 Senior Secured Debentures 44 Bakken horizontal 44 convertible redeemable preference 44 Devonian reef 44 Subordinate Note 44 Prestea Underground 44 TriAxon 44 Palmar Largo 44 Washmax 44 Altamont Bluebell 44 SonomaWest 44 cubic feet MMcf 44 Panhandle Granite Wash 44 #,#,# #,#,# - TotYemeni descent 44 Hedge ineffectiveness 44 Mining Lease OML 44 AleAnna Energy 44 Beaverhill Lake 44 Reorganized Debtors 44 Acreage Position 44 Partners LP EEP 44 YSV 44 Birchcliff Energy 44 loss carrybacks 44 Outer Foothills 44 unamortized premiums 44 ROK Coyote 44 subordinated debentures 44 Proventure 44 Gramercy Realty Lenders 44 Derivative liability 44 Kouakouala 44 Secured Debenture 44 coalbed methane 44 JunJing III 44 promissory note payable 44 Pengrowth 44 Sm3 oe 44 M#/# [002] 44 acidized 44 debt extinguishments 44 Montney Doig 44 LP AHD 44 CDX Gas 44 Mantaro Phosphate Project 44 Sweetie Peck 44 Geofine 44 JPDA #-# 44 mcfe 44 mmboe 44 Palo Duro Basin 44 Option Agreements 44 #/#a-# [001] 44 Appalachian basin 44 Antero Resources 44 TFA.A 44 Products Pipelines 44 horizontal Bakken 44 NGL pipelines 44 Las Cruces Cerattepe 44 Enerplus 44 ACOR PEL 44 subsurface mineral 44 Antrim Shale 44 MetaPower International 44 Copper PGM 44 #,#,# #,#,# Accrued [001] 44 Enercor 44 undepreciated 44 HOLDCO 44 Taplin Canida & 43 TransCanada Pipelines Limited 43 costless collars 43 Mhakari 43 MCFE 43 #,#,# #,#,# Stockholders equity [003] 43 CRIIMI MAE 43 Maritech 43 Pan Orient 43 EM DOS 43 NuStar Logistics 43 NFEI 43 b Relates 43 MMBbl 43 Avnel Gold 43 Marcellus acreage 43 depreciation depletion 43 Cadomin 43 Galoc Production 43 Canfor Pulp Limited 43 Arrangement Agreement whereby 43 Bamoos 43 Sabine Pass LNG 43 Gastem 43 PEP# [002] 43 Woodford Shale 43 AECO natural 43 Desdemona Properties 43 Hiland Partners